Masked gunmen dragged five Colombian Indians out of their homes and killed them on Wednesday after accusing them of collaborating with left-wing guerrillas, U.N representatives and indigenous leaders said, Reuters reported. The killings in southern province of Narino followed Tuesday's massacre of a family of six in a northern region where crops are grown to manufacture cocaine, the illicit drug that helps fuel Colombia's conflict. "Five displaced Indians were brutally murdered. Between 4:30 and 5 this morning they were taken out and a few meters away killed... after being accused of being militias," UNHCR refugee agency representative Roberto Meier told reporters. Meier would not say who was responsible. The army, leftist FARC guerrillas and right-wing paramilitaries have all been accused of killing civilians in the four-decade-old war. Indigenous leaders said men in masks and camouflage uniforms shot the three men and two women after accusing them of working with the Revolutionary Armed Forces of Colombia or FARC, the largest rebel group that U.S. and Colombian officials charge with terrorism and drug trafficking.