Boris Johnson and Carrie Symonds are expecting a baby

Boris Johnson's partner, Carrie Symonds, announced the news on Instagram

The Prime Minister Boris Johnson and his partner Carrie Symonds have revealed that they are expecting a baby.

They got engaged last year and said their baby is due early this summer.

On her private Instagram account Carrie Symonds said she felt "incredibly blessed".

Carrie Symonds and Boris Johnson got engaged last year

She added: "Many of you already know but for my friends that still don't, we got engaged at the end of last year.

"We've got a baby hatching early summer. Feel incredibly blessed."

This will be Mr Johnson's third marriage.

Boris Johnson's colleagues sent their congratulations

The MP Sajid Javid was one of the first people to congratulate the couple and said: "Congratulations @carriesymonds @BorisJohnson wonderful news!"

The former Scottish Conservatives leader Ruth Davidson also sent her congratulations.