Exhumations began near the city of Medellin, Colombia on Wednesday in what has been described as the world's largest mass urban grave. The site is said to contain the remains of victims of the country's civil war, killed in 2002 by paramilitary groups or the army. Relatives of the victims are hoping for closure and for the truth to emerge of what happened to their loves ones. The exhumations will continue for five months and cover 3,700 square meters. teleSUR