David Cameron might be one of the most well-known men in the country, but it looks like that level of fame doesn't extend to security gates.

The former Prime Minister and Witney MP was back at the office yesterday after a recent holiday, but was unable to get into Parliament after appearing to forget his security pass.

The Sun reported that tourists and staff stared as Mr Cameron tried to push through a revolving gate before getting trapped.

It is believed that he joked "they've locked me out already" before a security guard came to help him.

MPs are currently enjoying their summer recess from Parliament.