In pictures: Tomatina festival

1 of 7 At least 20,000 people throng the streets of Bunol, in Spain, to participate in a giant tomato fight.

2 of 7 It took at least five trucks to deliver the 130 tonnes of fruit that give the annual Tomatina festival its name.

3 of 7 The festival is said to have its origins in a battle between friends in the 1940s.

4 of 7 The authorities in Bunol ask participants not to wear tops during the event.

5 of 7 They also insist that tomatoes are crushed before being thrown to avoid injuring anyone.

6 of 7 The hour-long pelting session attracts enthusiastic participants from around the world.

7 of 7 The town square is turned into a mass of raw tomato soup.