In a pre-dawn strike, Maoists posing as CRFP personnel attacked a village in the district on Saturday, leaving six villagers dead.
The heavily-armed rebels attacked Kareili village around 5 00 am and shot dead the villagers including some tribals.
While five villagers were killed on the spot, one succumbed to injuries in a hospital.
Director RPT director general of police Neelmani said the rebels posing as CRPF personnel came in two vehicles and shot dead the villagers.
Heavy reinforcements led by superintendent of police P. Kanan have reached the spot and a combing operation is on in the jungles to track down the ultras.