David Cameron welcomed a new arrival to Downing Street today, posing for pictures with his 10-day-old daughter.

The Prime Minister stood with his wife Samantha, who cradled their new baby Florence Rose Endellion on the steps of No 10.

The child appeared unfazed by the bank of photographers and camera crews on the other side of the street.

Asked how many nappies he had changed, Mr Cameron joked: "Hundreds."

Another journalist asked: "Has Nick Clegg changed any nappies yet?"

Mr Cameron replied: "That's next."

The baby was wearing a white shawl crocheted by a member of the public who sent it in to congratulate the couple on the birth.

The woman, Jane Fraser-Cross, from Sutton Coldfield, Birmingham, is a local fundraiser and grandmother of 10, who likes to be known as "Granny Jane".

She was informed the child would be wearing her gift earlier today.

Mrs Cameron was wearing an orange dress made by a local dressmaker in which she has been pictured several times before. She also wore a blue skirt and heeled shoes by LK Bennett.

Asked if the baby was keeping them awake, she smiled and replied: "Yes."

Mr Cameron bent to kiss the baby on the head and she opened her eyes briefly.

The couple were smiling and laughing during the short photoshoot.

The appearance was delayed by more than 10 minutes and a Downing Street press officer said this was for "operational reasons". It was not clear if there was nappy changing involved.

Florence was born at the Royal Cornwall Hospital in Truro last Tuesday, weighing 6lb 1oz.

She was not expected until this month, but caught the family by surprise while they were on holiday.

Her middle name, Endellion, refers to the village of St Endellion on the north Cornish coast, near where the Camerons were staying.

The Camerons are also parents to Nancy, six, and Arthur Elwen, four.

Mr and Mrs Cameron lost their other son, Ivan, who suffered from cerebral palsy and severe epilepsy, when he died aged six last year.

The Prime Minister said in a statement: "Samantha and I would like to take this opportunity to thank everyone for their kindness and generosity since the birth of baby Florence.

"We have been really, really touched by all the people who have offered their warm congratulations, and by the many cards, gifts and flowers that we have received."