Samantha Cameron gives birth to baby girl

By Tim Montgomerie

The Camerons were on holiday in Cornwall when the baby was delivered.

Statement from Downing Street:

"The Prime Minister and Mrs Cameron are delighted to announce the birth of their fourth child, a baby girl. Both the baby - who was born weighing 6lbs 1oz - and Mrs Cameron are doing very well. The PM and Mrs Cameron would like to thank the doctors and nurses at the hospital for their help and kindness."

Congratulations to the happy parents from all at ConHome. I understand the baby was born by caesarian section at the Royal Cornwall hospital, Truro.

2.15pm: The first name suggestion has arrived from The Sunday Telegraph's Political Editor:

4pm VIDEO: David Cameron reacts to the birth of his fourth child, a daughter