Iran’s response to Israeli attacks on its nuclear facilities is “self-defence” and a “matter of principle”, the Iranian ambassador to the UK has told Sky News.

Speaking exclusively to The World With Yalda Hakim, Seyed Ali Mousavi said the “barbaric Israeli regime” is “violating international law” – describing Israel’s actions in recent days as “an act of aggression against the Iranian people”.

The conflict between Israel and Iran – once played out in a series of proxy wars – has escalated in the past three days.

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On Friday morning, explosions hit Tehran as Israel carried out a major attack on its top army leaders, nuclear sites, and nuclear scientists.

Iran threatened “severe punishment” and quickly retaliated with a wave of missiles.

When questioned about whether Iran could continue fighting Israel, the Iranian ambassador told Yalda Hakim that “it is a matter of principle”.

He said: “This is about self-defence, there is no doubt about it.

“We are a responsible member state of the UN and we do all activities according to our international obligations.

“Any activities are only in the framework of self-defence.”

He added that his country would “do our best to preserve our territorial integrity”, and that “with the help of God”, Iran will “materialise endeavours concretely against our enemy – the Israeli regime”.

Mr Mousavi also told Hakim that Iran’s nuclear activities are “monitored”, and that recent comments by the International Atomic Energy Agency (IAEA) were “politically motivated”.

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The UN nuclear watchdog’s board of governors found Iran was not complying with its nuclear obligations for the first time in 20 years.

Iran said it has “always adhered” to the safeguarding obligations laid down by the watchdog.

Announcing Operation Rising Lion on Friday, Israeli Prime Minister Benjamin Netanyahu claimed Iran had recently taken steps to weaponise enriched uranium, which could be used to make nuclear weapons.

But Mr Mousavi stressed that Iran’s “peaceful activities” at its “nuclear fields” were only for the “generation of electricity, and other peaceful” things.

Iran was due to continue its round of negotiations with the US in Muscat – however, this was cancelled, given recent tensions.

A helicopter carrying Hindu pilgrims has crashed in India, killing seven people on board.

The accident happened within minutes of the helicopter taking off, officials said, on what should have been a 10-minute flight.

The helicopter was flying to Guptkashi, a prominent Hindu pilgrimage site in the Himalayas, from Kedarnath temple town in the northern Indian state of Uttarakhand.

It comes three days after an Air India flight crashed less than a minute after taking off from Ahmedabad airport in northwestern India, killing at least 270 people.

The helicopter, which was operated by private helicopter service Aryan Aviation, went down in a forested area several miles from the Kedarnath pilgrimage route at around 5.30am local time.

Officials said the crash was believed to have been caused by poor weather conditions.

Authorities say they have launched a search and rescue operation and are expected to review operational protocols for flights in the region.

The dead include the pilot and pilgrims from the neighbouring state of Uttar Pradesh and western states of Maharashtra and Gujarat, according to officials. The bodies were badly burned in a fire that followed the crash, they said.

Tens of thousands of pilgrims visit Kedarnath, which is home to one of the four most sacred Hindu temple shrines, each summer. Many use helicopter services due to the difficult mountainous terrain.

Helicopter mishaps are not uncommon in the region, where sudden weather changes and high-altitude flying conditions can pose risks.

Earlier this month, a helicopter operating in the Kedarnath Valley made an emergency landing shortly after taking off on a highway due to a technical fault. The pilot was injured but all five passengers on board were unharmed.

In May, a helicopter crashed in Uttarkashi district, killing six people, including the pilot. One person survived.

An Irish politician who was detained in Egypt trying to cross into Gaza says the police were violent towards the group after seizing his phone.

People Before Profit-Solidarity TD (MP) Paul Murphy was part of a large demonstration attempting to march to the Rafah crossing in a bid to get aid into the region.

The opposition politician said his phone and passport were confiscated on Friday before he was put on a bus to Cairo airport for deportation.

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Footage of the seconds before his phone was seized shows authorities forcibly dragging protesters away from the sit-down demonstration.

Ireland’s deputy premier said several Irish citizens who were detained have now been released. Mr Murphy confirmed he was among the released protesters, posting a photo on his Facebook page saying he was back in Cairo and “meeting shortly to decide next steps”.

In a message from Mr Murphy after he was detained, posted online by his social media team, he said: “I’m ok, but they still have my phone.

“Egyptian police say we’re going to airport but this isn’t the road we came on because there are 1000s of marchers on the streets. They’re taking us south past a lake, then west towards Cairo.

“Violence got worse after they seized my phone.

“One American woman in my group was badly kicked & beaten, and had her hijab torn off.”

Sky News has contacted Egypt’s police regarding Mr Murphy’s claims of violence towards the group.

Mr Murphy previously said other Irish citizen were among those who had been stopped from entering Gaza.

“The world has watched a horrific genocide for the past 20 months. Since March, a total attempt of starvation,” he added.

“And that this is a peaceful march to demand that it be ended and demand that western governments stop their complicity.”

Appeal to foreign affairs minister

Mr Murphy’s partner, Councillor Jess Spear, had previously appealed to Ireland’s Foreign Affairs Minister and deputy premier Simon Harris to make a public statement on Mr Murphy’s detention.

She expressed “relief” that the group had been released from detention.

She said: “However, they still want to reach Rafah to try and get humanitarian aid into Gaza. That has been the sole purpose of being in Egypt.

“Paul has appealed to Tanaiste Simon Harris to put pressure on the Egyptian authorities to let the marchers reach Rafah. The situation of the people of Gaza worsens by the day as they suffer starvation imposed by Israel.”