Around the world, protestors call for action on Darfur

LONDON (AFP) - Protests are taking place around the world Sunday as campaigners demand that world leaders act to prevent further bloodshed in Darfur on the fourth anniversary of the conflict's start. 

The Global Day for Darfur, organised by a coalition including Amnesty International and Human Rights Watch, will see activists globally turn over more than 10,000 hourglasses filled with fake blood. 

These are designed to convey the message that delaying intervention will cost lives in the troubled western region of Sudan. The focus of the day was in London, where hundreds of demonstrators are expected to march on Prime Minister Tony Blair's Downing Street office. 

Activists have also erected a two-metre high hourglass of blood in Trafalgar Square. In Rome, hundreds of people took part in a march on the Colosseum.