In footage of the incident, which was broadcast live on the TC network, Mr Calderon was seen attempting to plead with the masked gunmen, one of whom pushed a gun to his neck.
“They kept on repeating, ‘if the police come in, we’ll kill you’,” he told Sky News.
“It was a really chaotic moment, but in that instant, I kept my calm. You’ve seen the pictures, I’m calm, looking as if I’m praying, asking them not to go too far.
“There was no explanation about what was happening at that moment.
“The news programme was on air and that’s why you were able to see the footage. You could see what was happening when they pointed a gun at me, they put an explosive in my jacket pocket.
“They were really unnerving moments, but at the same time, I managed to stay calm.”
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Mr Calderon said he was not initially on air at the time the masked gunmen burst into the studio, and first became aware that there was an issue when he heard people shouting.
He and two colleagues attempted to hide in a nearby bathroom.
“We were hidden in there for a few minutes,” he said.
“We managed to speak to our relatives and warn the police about what was happening without knowing the exact details of what was going on and who was behind it.”
He said the gunmen discovered where they were hiding and ordered them to come out.
“We saw that they were hooded men, with big military-type guns, pistols, revolvers, there was even a machete,” he said.
“They made threats constantly. My colleagues were touched inappropriately.
“They led us to the studio, which was still live on air. When we arrived, just metres away there were colleagues, people working for the channel who were on the floor, very worried, on their knees, and they took us hostage.”
Mr Calderon said at one point a gunman shouted to say that they “had to kill one” of the hostages.
“People were very worried. In my case, I’ve been a journalist for 23 years, including in the field.
“I’ve covered events like this, and I’ve seen tragic events – but I’ve never been part of one.”
Mr Calderon said the gunmen, who he described as a group of “armed kids”, wanted him to communicate a message on the television, but it was not clear what they wanted him to say.
He said when police arrived and began shooting, the group dispersed and were eventually captured by police.
“We’re grateful that we’re alive. This is completely unheard of, for this sort of thing to happen on TV, for someone to threaten us on our property,” Mr Calderon said.
“The message that they wanted to send was just chaos. Here we are to impose ourselves above the law.”
Mr Calderon said that despite the incident – which he described as a “terrorist attack” – the people of Ecuador should keep “faith in the work” of the armed forces and police.
“There’s fear that another situation like this could happen. We’re hoping for action to be taken to guarantee our safety,” he said.
“My life was at risk, as well as my colleagues. I’ve never seen a situation like this.
“But we should have faith in the work of the armed forces. The police and the armed forces are in a position that allows them to take action against any situation.”
Following the incident, Ecuador’s attorney general’s office said 13 people had been arrested for breaking into the studio and were set to be charged with terrorism offences.
The charge holds a penalty of up to 13 years in prison under Ecuadorian law, if convicted.
National police commander Cesar Zapata told the TV channel Teleamazonas that officers seized a number of guns and explosives at the scene.
The incident took place a day after Mr Noboa, the son of one of Ecuador’s richest men, who took office in November promising to stem a wave of drug-related violence on the streets and in prisons, declared a state of emergency.
The declaration was made after drug lord, Adolfo Macias – also known as Fito – was reported missing from his cell on Sunday.
The leader of the Los Choneros gang was serving a 34-year sentence in La Regional prison for drug trafficking and murder.
His reported escape occurred on the same day he was scheduled to be transferred to a maximum security facility in the city of Guayaquil.
Ecuador‘s prosecutors have filed charges against two prison guards as part of their investigation into the alleged escape.
Donald Trump’s Middle East envoy has met Israel’s prime minister in an effort to secure a ceasefire deal in Gaza before the president-elect takes office on 20 January.
Benjamin Netanyahu’s office confirmed details of the meeting with Steve Witkoff on Saturday, adding that the head of the Israeli Mossad intelligence agency has been deployed to Qatar in order to “advance” talks.
It was not immediately clear when David Barnea would travel to Doha for the latest round of indirect discussions between Israel and Hamas.
Earlier on Saturday, an Israeli official said some progress had been made, mediated by Egypt, Qatar and the United States, to reach a deal in Gaza.
The mediators are making renewed efforts to halt fighting in Gaza and free the remaining Israeli hostages held there before Mr Trump takes office.
A deal would also involve the release of some Palestinian prisoners held in Israeli jails.
Families of Israeli hostages welcomed Mr Netanyahu’s decision to dispatch the officials, with the Hostages and Missing Families Forum Headquarters describing it as a “historic opportunity”.
Mr Witkoff arrived in Doha on Friday and met the Qatari Prime Minister Sheikh Mohammed bin Abdulrahman Al Thani, Qatar’s foreign ministry said.
Egyptian and Qatari mediators received reassurances from Mr Witkoff that the US would continue to work towards a fair deal to end the war soon, Egyptian security sources said, though no further details were released.
Israel launched its assault on Gaza after Hamas fighters stormed across its borders in October 2023, killing 1,200 people and taking more than 250 hostages, according to Israeli figures.
Families of the roughly 100 hostages still held in Gaza are pressing Mr Netanyahu to reach a deal to bring their loved ones home.
Since then, more than 46,000 people have been killed in Gaza, according to Palestinian health officials, with much of the area destroyed and gripped by a humanitarian crisis, with most of its population displaced.
Pope Francis has been honoured with America’s highest civilian award by President Joe Biden, who has described the pontiff as “a light of faith, hope, and love that shines brightly across the world”.
It is the first time Mr Biden, 82, has given the Presidential Medal of Freedom with Distinction during his four years in office.
In a statement, the White House said the award is “presented to individuals who have made exemplary contributions to the prosperity, values, or security of the United States, world peace, or other significant societal, public or private endeavours”.
Mr Biden had been scheduled to present the medal to Pope Francis, 88, in person on Saturday in Rome on what was to be the final overseas trip of his presidency. But the president cancelled his visit to monitor the California wildfires.
The White House said Mr Biden bestowed the award during a phone call in which they also discussed efforts to promote peace and alleviate suffering around the world.
The award can be presented with or without distinction.
Mr Biden presented the medal of freedom – without distinction – on 5 January to several people including fellow Democrat Hillary Clinton, humanitarian and U2 singer Bono, fashion designer Ralph Lauren and actors Michael J Fox and Denzel Washington.
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Mr Biden himself is a recipient of the award with distinction, recognised when he was vice president by then president Barack Obama in a surprise ceremony eight years ago.
The citation for the pope’s honour said his “mission of serving the poor has never ceased”.
“A loving pastor, he joyfully answers children’s questions about God. A challenging teacher, he commands us to fight for peace and protect the planet. A welcoming leader, he reaches out to different faiths,” it added.
Ukraine has captured two North Korean soldiers fighting in Russia’s Kursk region, President Volodymyr Zelenskyy has said.
The injured pair are now in Kyiv and communicating with the Security Service of Ukraine, the country’s domestic intelligence agency, he said.
Ukrainian special forces and paratroopers captured the North Koreans, Mr Zelenskyy said in a post on X.
“As with all prisoners of war, these two North Korean soldiers are receiving the necessary medical assistance,” he said.
“I have instructed the Security Service of Ukraine to grant journalists access to these prisoners.
“The world needs to know the truth about what is happening.”
Mr Zelenskyy said capturing the soldiers alive was “not easy”. He also claimed Russian and North Korean forces fighting in Kursk have tried to conceal the presence of North Korean soldiers, including by killing wounded comrades on the battlefield to avoid their capture and interrogation by Ukraine.
The post included images of the two men – one with a bandage around his jaw and the other around both hands and wrists – and what appeared to be a Russian military document.
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Ukrainian drone targets Kursk soldiers
Ukraine’s security service SBU on Saturday provided further details.
It said one of those detained had no documents at all, while the other had been carrying a Russian military ID card in the name of a man from Tuva, a Russian region bordering Mongolia.
“The prisoners do not speak Ukrainian, English or Russian, so communication with them takes place through Korean translators in cooperation with South Korean intelligence,” a statement said.
One of the soldiers claimed he had been told he was going to Russia for training, rather than to fight against Ukraine, according to the SBU.
The agency added both men are being provided with medical care in line with the Geneva Conventions, and investigated “in cooperation with South Korean intelligence”.
North Korean regular troops entered the war on Russia’s side in October, according to Ukraine and its Western allies.
US, South Korean and Ukrainian intelligence assessments suggest up to 12,000 North Korean combat troops have been sent by Pyongyang under a pact with Moscow.
They believe North Korea has also been supplying Russia with vast quantities of artillery shells.