April 29 (UPI) -- British Prime Minister Boris Johnson and fiancee Carrie Symonds announced the birth of their baby boy on Wednesday.
"The [prime minister] and Ms. Symonds would like to thank the fantastic NHS maternity team," he said.
Johnson and Sydmonds announced their engagement in February.
Johnson returned to work on Monday after spending several days in intensive care with a serious coronavirus infection. He's just the fourth British prime minister in 170 years to have a child born during their time in office -- but the third of the last five, following Tony Blair and David Cameron.
Symonds, 32, is a former Conservative Party spokesperson who worked on Johnson's 2012 re-election bid for London mayor. Johnson, 55, has four children from his second marriage.
"Great to hear Downing Street is getting a new resident," British Chancellor Rishi Sunak tweeted.
"Wonderful news. Many congratulations to Boris Johnson and Carrie Symonds," Labor Party Leader Keir Starmer added.