(CNN) British Prime Minister Boris Johnson and his partner, Carrie Symonds, have announced they are expecting a baby and are engaged to be married, Downing Street confirmed on Saturday.

No further information is being provided by the Prime Minister's office at this stage.

Prime Minister Boris Johnson with Carrie Symonds following his keynote speech at the October 2019 Conservative Party Conference in Manchester, England.

The last time a child was born to a sitting prime minister was in 2010, when David Cameron and his wife, Samantha Cameron, welcomed their daughter Florence.

Symonds, 31, has enjoyed a successful political career, working as part of the campaign team that helped to get Johnson re-elected as mayor of London in 2012.

Read More