Video: BBC News
PM 'Delight' At Cat To Tackle Rat Problem
David Cameron has welcomed the latest recruit to Downing Street - a cat to tackle the rat problem there.
A four-year-old tabby called Larry has been picked from a shortlist of residents at Battersea Dogs and Cats Home.
The Prime Minister is thought to have chosen him after talking to his two elder children, Nancy and Arthur.
Mr Cameron said: "I'm delighted to welcome Larry to his new home.
"He came highly recommended to me by Battersea Dogs and Cats Home, who did a fantastic job looking after him.
"I'm sure he will be a great addition to Downing Street and will charm our many visitors."
Rats have been spotted on national television scuttling behind journalists as they reported from outside No. 10.
Downing Street said staff at Battersea saw that Larry had a "strong predatory drive" and enjoyed playing with toy mice, suggesting that he will be a good rat-catcher.
"Before coming to Battersea, he was a stray, so he is used to fending for himself on the streets," said a spokesman.
"Nothing is ever guaranteed but his behaviour in Battersea convinced staff that he was up for the job.(= capable of doing the job)"
A professional ratcatcher has been seen in Downing Street preparing to set traps and put down poison.
It is thought the rodents could be living under a bush near No. 11 - the home of Chancellor George Osborne.
His predecessor, Alistair Darling, had a cat named Sybil briefly in 2007 but she returned to Scotland after apparently failing to settle in London.
One of the most famous cats to live in Downing Street was Humphrey, named after a character in the comedy show Yes Minister.
Humphrey made the headlines after it was reported former resident Cherie Blair was not very keen on the feline.
He arrived as a one-year old stray and remained during the premierships of Margaret Thatcher and John Major.
He retired a few months after the Blairs moved in to Downing Street in 1997 and died nine years later in 2006.
Source: Sky News