Holly Willoughby and Phillip Schofield overwhelmed discussing children in Ukraine on live TV

Watch: Holly Willoughby and Phillip Schofield overwhelmed discussing children in Ukraine

Holly Willoughby and Phillip Schofield became tearful discussing the crisis in Ukraine and were forced to cut to a commercial break.

The This Morning hosts were discussing a video that has gone viral on social media of a young girls singing Let It Go in Ukrainian in a bomb shelter with fellow presenters Gyles Brandreth and Royal correspondent Camilla Tominey.

As the TV presenters became overwhelmed Schofield said: "'Let's leave it there," and the show cut to an ad break.

Read more: Ukraine’s Zelenskiy vows revenge on Russian forces

After watching the clip of the young girl singing the hit song from Disney movie Frozen, Willoughby had remarked: "It's such innocence, isn't it?"

Watch: Ukrainian girl sing 'Let It Go' in bomb shelter

Brandreth added: "We are seeing the worst of humanity and the best of humanity in this crisis, aren't we?"

And mother-of-three Tominey said: "I hadn't seen that before, actually. She's the age of my youngest daughter. It's awful."

Willoughby choked tearfully: "It's horrible," before an emotional Schofield introduced the commercial break.

The 41-year-old TV presenter - mother to 12-year-old Harry, 10-year-old Belle and seven-year-old Chester - recently confessed on social media she was struggling to explain the Ukraine crisis to her children.

She said: "How do I explain this to my children… I was asked questions last night I didn’t have the answers for…"

Russian president Vladimir Putin began a siege of Ukraine on 24 February, prompting thousands of Ukrainians to attempt to flee the country.

Russia has announced it will hold fire and open humanitarian corridors in Ukrainian cities, allowing civilians from Kyiv, Kharkiv, Mariupol, and Sumy to leave and enter Russia and Belarus.

Meanwhile, Homes Under the Hammer star Martin Roberts has posted a tearful video on social media after attempting to buy supplies to help refugees fleeing Ukraine.

He revealed: "I'm really at a loss in terms of what I can do to help with what’s going on in Ukraine.

"So I’ve just been buying lots of things like [nappies], kids stuff, [tampons] and other bits and pieces."

And Gary Lineker has shared his heartbreak over a difficult-to-watch BBC report about Ukrainian child cancer patients forced to flee their home country.

Read more: Nicola Sturgeon calls Clive Myrie an 'unsung hero'

The 61-year-old former footballer was one of many viewers moved by Sunday night's BBC News report into the desperate situation facing children caught up in the conflict with Russia.

Watch: TV presenter Martin Roberts sobs outside supermarket about plight of Ukrainian children