US President Donald Trump has said America is praying for Boris Johnson.

The president said at his daily White House press briefing he wanted to 'send very best wishes to a very good friend of mine and a friend of our nation' as Mr Johnson was moved into an intensive care unit at St Thomas' Hospital.

He added: "We were very saddened to hear that he was taken into intensive care. He has been a really good friend.

"He has been something really special. Strong. Resolute. Doesn't quit. Doesn't give up."

The President's daughter Ivanka had earlier tweeted: "My thoughts and prayers are with  @BorisJohnson and his family.  Godspeed Mr. Prime Minister!"

Mr Johnson was moved into intensive care earlier this evening after having difficulty breathing. He was admitted to hospital yesterday after his coronavirus symptoms worsened.