Mass graves have been found in Colombia, containing the bodies of 21 people thought to have been killed by a paramilitary unit, the authorities say. The remains were discovered in the banana-growing region of Cienaga, on the country’s Caribbean coast. Officials believe the killings happened between 2002 and 2004. The paramilitary unit involved, the Northern Bloc, is due to demobilise as part of a controversial peace process with the government. Full Story