David Cameron sees mouse during private No 10 dinner

No 10's problem with rodents has yet to be sorted out, David Cameron has said, despite the arrival of a cat in the prime minister's home.

Mr Cameron said he had seen a mouse in his Downing Street flat while having dinner with his brother recently.

"I actually caught it on my mobile phone," he told BBC One's The One Show.

No 10 acquired a four-year old cat called Larry last month after a rat was spotted outside the front door.

"Larry is working well," Mr Cameron added. "He has been in the main bit of the building first before he comes up to the flat and tries out there."