The leading US general in Haiti has said that up to 200,000 people may have died in last Tuesday's earthquake. Lt Gen Ken Keen said the disaster was of epic proportions, but it was too early to know the full human cost. <br/><br/>Reuers pulled more people alive from the rubble at the weekend, but at least 70,000 people have already had burials. Relief efforts are being slowed by bottlenecks, and many thousands of survivors are fending for themselves.<br/><br/> Many Haitians are trying to leave the devastated capital city of Port-au-Prince, and there are security concerns amid reports of looting and violence. More than 2,000 US marines were expected to arrive in the region later today to bolster US troops and UN peacekeepers already on the ground.<br/><br/>European Union nations today pledged more than 420 million euros from the EU budget to assist Haiti, with about half the sum dedicated to emergency and short-term aid. European ministers were also discussing deploying a security mission to help maintain law and order.