The Saturdays' Una Healy has given birth to a baby girl, Aoife Belle Foden.

Healy's fiancee Ben Foden broke the good news on Twitter this afternoon (March 13), with messages of congratulations beginning to pour in for the new mother.

Foden tweeted: "I am officially a Dad!!!!!! Una an baby are both amazing and healthy!!!! So proud of them both! #babybenuna."

The Saturdays - and new "aunties" - meanwhile sent a collective tweet soon after to congratulate the happy couple. They said:

"HUGE congrats to @unahealy & @ben_foden on the birth of their baby girl! Your aunties Frankie, Mollie, Roch & Ness CAN'T wait to meet u."

Mollie King meanwhile tweeted: "Congratulations to my beautiful unahealy and ben_foden! I couldn't be more proud! What gorgeous parents u will make! I want to seeee her!"