The couple were seen walking into a London hospital at 7.40am flanked by two police officers.

“UK Prime Minister Boris Johnson and his wife Carrie welcomed a baby girl on Thursday morning.

The couple were seen walking into a London hospital at 7.40am flanked by two police officers.

They entered via a side entrance with Mrs Johnson carrying an overnight bag.

In a statement, a spokesperson for the couple said they were “delighted”.

“The Prime Minister and Mrs Johnson are delighted to announce the birth of a healthy baby girl at a London hospital earlier today,” the statement said.

“Both mother and daughter are doing very well. The couple would like to thank the brilliant NHS maternity team for all their care and support.”

Mr Johnson was present with his wife throughout the birth, it is understood, but will not be taking paternity leave.