Venezuela prison mass grave yields 15 corpses, three headless

CARACAS (Reuters) - Fifteen corpses, three of them headless, have been found in a mass grave at a Venezuelan prison and more may be discovered, investigators said on Saturday.

The grisly find this month at the General Penitentiary in central Guarico state has thrown a spotlight on the South American nation's crowded, violent and gang-dominated prisons where scores of inmates die each year.