Ms Doyle’s husband Rob said she was taken to hospital after he found her “unresponsive”.
It comes after an inquiry into allegations of bullying at the channel.
The probe, conducted by law firm Capital Law, published its report on Wednesday.
It found Ms Doyle’s leadership style to be “dictatorial” and “creating a culture of fear”.
Ms Doyle has previously claimed she suffered “a sustained pattern of retaliation, unfair treatment, and wider bullying” at the hands of S4C’s chairman.
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In a statement issued on Wednesday, members of the S4C Authority – the body which oversees the management of the broadcaster – said they “would like to say sorry to those who have had to tolerate unacceptable behaviours in the workplace and for the upset that this has caused”.
S4C said the chairman had nothing further to add to Wednesday’s statement.
Mr Doyle said the report was “heavily biased” and that its framing was “cruel”.
He added the last 24 hours had seen his wife “torn apart in the media after an exceptional 30-year career because of a one-sided report”.
Mr Doyle claimed the report was “designed to be an assassination of her character”.
A DCMS spokesperson said: “Our thoughts and prayers are with Ms Doyle and her family at this incredibly difficult time, and we wish her a speedy return to health.
“We expect the board of S4C to address the issues identified in the independent investigation by Capital Law as a matter of urgency. We have been in regular contact with S4C throughout this investigation and will remain so.
“Public service broadcasters, like every organisation, have a responsibility to uphold a duty of care to all employees.”
S4C was launched in 1982 after a campaign to establish a Welsh-language channel.
“Sian was so proud to have been asked to come out of retirement to lead an organisation that, as a young girl, she campaigned to set up,” Mr Doyle said.
“But that pride turned into frustration, and then to disappointment, fear, and finally despair.”
He said he had “watched in horror and disbelief” as his wife had been “hunted over the last seven months”.
“The person represented in yesterday’s supposedly ‘independent’ report was unrecognisable from the woman I’ve loved for the past 37 years, or the woman her friends and former colleagues know,” he added.
A spokesperson for S4C said the news about Ms Doyle was “very worrying”.
“We are thinking about her and the family,” they said in a statement. “We have offered our support to the family during this difficult time.
“Our hope is that she will recover quickly, and we wish her all the best for the future.”
Clodagh Rodgers, a singer best known for representing the UK at the 16th Eurovision Song Contest, has died aged 78.
The Northern Irish singer was described as “the rock of this family” by her son Sam, who said she died on Friday 18 April.
Sam Sorbie wrote: “With a heavy heart, my dear beautiful mum Clodagh has sadly passed away after battling an illness for the last three years. She passed away peacefully yesterday, surrounded by her family in Cobham.
“Mum has lived an incredible life, full of love and happiness. Her fantastic career performing, travelling the world, devoting her life to her two sons and being the rock of this family.
“Life will not be the same without Mum, but she will finally be at peace now with dad, nanny and pappa. We all love and miss her terribly.”
A regular face on the TV in the 1970s and 1980s, Rodgers performed Jack In The Box at the 1971 Eurovision Song Contest in Dublin, finishing in fourth place behind Germany, Spain and the winners, Monaco.
Jack In The Box went on to reach number four in the UK singles chart, and although she entered the charts later that year with Lady Love Bug, the Eurovision track remained her biggest hit.
Rodgers began singing as a youngster and got her first record deal aged just 15.
Image: Rodgers performing at the 16th Eurovision. Pic: BBC
She went on to appear on primetime shows including The Morecombe And Wise Show, The Two Ronnies, Top Of The Pops, Bruce Forsyth & The Generation Game and The Val Doonican Show.
She was chosen as the face of Bisto gravy in the 70s, following her Eurovision hit.
Image: (L-R) Rodgers with Ronnie Corbett in 1971, when they starred in Cinderella. Pic: AP
A talented live performer, she also starred in her own West End show Talk Of The Town, and West End musical hit Blood Brothers, as well as numerous variety shows and the pantomime Cinderella, co-starring comedian Ronnie Corbett.
Rodgers released six albums, five compilation records and numerous singles across her six-decade career. She insured her voice for £1m.
In 2001 she appeared as a recurring character in police drama The Bill.
Married twice, Rodgers leaves behind her two sons, Sam and Matt.
Hip hop mogul Sean “Diddy” Combs has lost a bid to delay his upcoming sex-trafficking trial by two months.
US district judge Arun Subramanian said the 55-year-old rapper made his request too close to his trial, which is due to start next month.
Jury selection is currently scheduled for 5 May with opening statements set to be heard seven days later.
Combs has pleaded not guilty to five criminal counts including racketeering and sex trafficking.
Prosecutors with the Manhattan US attorney’s office accuse Combs of using his business empire to sexually abuse women between 2004 and 2024.
Combs’s lawyers say the sexual activity described by prosecutors was consensual.
In a court filing on Wednesday, Combs’s lawyer Marc Agnifilo asked Mr Subramanian to delay the trial because he needed more time to prepare his defence to two new charges which were brought on 4 April.
The charges were of sex trafficking and transportation to engage in prostitution.
Mr Agnifilo also said his team needs extra time to review emails it wants an alleged victim to turn over.
The new allegations brought the total number of criminal charges against the rap mogul to five – following the three original counts, which also included racketeering conspiracy, filed in September.
Federal prosecutors were opposed to any delay, writing in a Thursday court filing that the additional charges brought earlier this month did not amount to substantially new conduct.
They also said Combs was not entitled to the alleged victim’s communications.
Image: A sketch of Combs during one of his court appearances. Pic: Reuters
Meanwhile, Mr Subramanian is weighing other evidentiary issues, such as whether to allow alleged victims to testify under pseudonyms.
Also known during his career as Puff Daddy and P Diddy, Combs founded Bad Boy Records and is credited with helping turn rappers and R&B singers such as Notorious B.I.G, Mary J. Blige, Faith Evans and Usher into stars in the 1990s and 2000s.
But prosecutors have said his success concealed a dark side.
They say his alleged abuse included having women take part in recorded sexual performances called “freak-offs” with male sex workers, who were sometimes transported across state lines.
Combs has been in jail in Brooklyn since September, having been denied bail.
He also faces dozens of civil lawsuits by women and men who have accused him of sexual abuse.
Combs has strenuously denied all allegations of wrongdoing.
Alex Garland says while it’s “the most obvious statement about life on this planet” that the world would be a better place without war, it “doesn’t mean it should never happen”, and there are “circumstances in which war is required”.
The Oscar-nominated screenwriter and director told Sky News: “I don’t think it is possible to make a statement about what war is really like without it being implicitly anti-war, inasmuch as it would be better if this thing did not happen.
“But that’s not the same as saying it should never happen. There are circumstances in which war is required.”
Image: (L-R) Co-writers and co-directors Alex Garland and Ray Mendoza. Pic: A24
His latest film, Warfare, embeds the audience within a platoon of American Navy SEALs on an Iraqi surveillance mission gone wrong, telling the story solely through the memories of war veterans from a real 2006 mission in Ramadi, Iraq.
Garland says the film is “anti-war in as much as it is better if war does not happen,” adding, “and that is about the most obvious statement about life on this planet that one could make.”
Comparing it to ongoing geopolitical conflict across the world, Garland goes on: “It would be better if Gaza had not been flattened. It would be better if Ukraine was not invaded. It would it better if all people’s problems could be solved via dialogue and not threat or violence…
“To be anti-war to me is a rational position, and most veterans I’ve met are anti-war.”
The screenwriter behind hits including Ex Machina, 28 Days Later and The Beach says this film is “an attempt to recreate something as faithfully and accurately as we could”.
Image: The film opens to Swedish dance hit Call On Me. Pic: A24
‘War veterans feel invisible and forgotten’
Almost entirely based on first-person accounts, the 15-rated film opens with soldiers singing along to the video of Swedish dance hit Call On Me – complete with gyrating women in thong leotards.
It’s the only music in the film. The remaining score is made up of explosions, sniper fire and screams of pain.
Garland co-wrote and co-directed the film alongside Hollywood stuntman and gunfight coordinator Ray Mendoza, whom Garland met on his last film, Civil War.
Mendoza, a communications officer on the fateful mission portrayed in the film, says despite the traumatic content, the experience of making the film was “therapeutic”.
Mendoza told Sky News: “It actually mended a lot of relationships… There were some guys I hadn’t spoken to in a very long time. And this allowed us to bury the hatchet, so to speak, on some issues from that day.”
Turning to Hollywood after serving in the Navy for 16 years, Mendoza says past war film he’d seen – even the good ones – were “a little off” because they “don’t get the culture right”.
Mendoza admits: “You feel like no one cares because they didn’t get it right. You feel invisible. You feel forgotten.”
With screenings of Warfare shown to around 1,000 veterans ahead of general release, Mendoza says: “They finally feel heard. They finally feel like somebody got it right.”
As to whether it could be triggering for some veterans, Mendoza says decisively not: “It’s not triggering. I would say it’s the opposite, for a veteran at least.”
Image: D’Pharaoh Woon-A-Tai plays communications officer Ray. Pic: A24
‘I’m an actor – I love my hair’
A tense and raw 90-minute story told in real time, the film’s ensemble cast is made up of young buzzy actors, dubbed “all of the internet’s boyfriends” when the casting was first announced.
Mirroring the Navy SEALs they were portraying, the cast initially bonded through a three-week bootcamp ahead of filming, before living together for the 25-day shoot.
Black Mirror’s Will Poulter, who plays Eric, the officer in charge of the operation, says the film’s extended takes and 360-degree sets demanded a special kind of focus.
Poulter said: “It required everyone to practise something that is fundamental to Navy SEAL mentality – you’re a teammate before you’re an individual.
“When a camera’s roaming around like that and could capture anyone at kind of any moment, it requires that everyone to be ‘on’ at all times and for the sake of each other.
“It becomes less about making sure that you’re performing when the camera lands on you, but as much about this idea that you are performing for the sake of the actor opposite you when the camera’s on them.”
Another of the film’s stars, Reservation Dogs’ D’Pharaoh Woon-A-Tai, plays Mendoza and is the heart of the film.
Woon-A-Tai says the cast drew on tactics used by real soldiers to help with the intense filming schedule: “Laughter is medicine… A lot of times these are long takes, long hours, back-to-back days, so uplifting our spirit was definitely a big part of it.”
He also joked that shaving each other’s heads in a bonding ritual the night before the first day of filming was a daunting task.
“As actors, we love our hair. I mean, I speak personally, I love my hair. You know, I had really long hair. So yeah, it definitely takes a lot of trust. And you know, it wasn’t even at all, but you know it was still fun to do.”