Tripoli. Salahuddin District. 27th August 2011.\nBurnt corpses of at least 55 men who were executed late on Tuesday in Tripoli's Salahuddin district by militiamen loyal to Colonel Gadaffi. \nOne of the worst single atrocities documented so far during Libya's revolution may include as many as 140 victims and occured in a yard used to store farm machinery in the Salahuddin district of Tripoli, adjacent to the capitals largest military base. The prisoners were herded into a barn adjacent to Tripoli's largest military headquarters, where they were machine gunned. Hand grenades were thrown at survivors before the bodies were set alight. This is one of the worst single atrocities documented so far during Libya's revolution and survivors place Col. Gadaffi's son Khamis at the scene giving orders shortly before the exections began. At least 7 men escaped the killings, but the bodies of up to 90 others, also believed to have been killed there, are still missing. Mounds of bulldozed earth in the yard suggest the presence of a mass grave.