Passengers have some Y-front on underground ride

Hundreds of people stripped off their trousers to take a half-naked trip on the London Underground yesterday.

Crowds met outside the National Gallery in Trafalgar Square for the 10th annual No Trousers Tube Ride before heading underground where they boarded trains on different Tube lines across the capital.

More than 100 people piled on to the Piccadilly Line, where they struggled to remove their trousers due to the large crowds. Regular Sunday passengers were left bewildered as men and women sat in their brightly-coloured underwear talking or reading. After changing to the Jubilee Line at Green Park, the group got off at Canary Wharf to do some aerobics on the platform before jumping on another train.