UMM QASR, Iraq, April 8 (IslamOnlin.net) - The U.K. troops in the Iraqi southern port city of Umm Qasr set up mass graves in the city to cover up hard evidence of committing massacres that claimed the lives of some 200 Iraqis in the first days of the war, unleashed on March 20, eyewitnesses told IslamOnlin.net Tuesday, April 8.