Larry celebrates 15 years as No. 10 Downing Street staff

Larry, the Downing Street cat, celebrates his 15 years as a No. 10 staff member.

The famous mouser was recruited in 2011 by then-Prime Minister David Cameron to tackle a rat problem.

The rescue cat has been a much-loved resident ever since.

The government website says Larry spends his day "greeting guests, inspecting security defences and testing antique features for nappying quality."

His day-to-day responsibilities, apparently, also include "contemplating a solution to the mouse occupancy of the house..."