Four Maoists were killed in a gun battle with the police in a forested area of Orissa's Malkangiri district on Thursday, police said.
District Superintendent of Police Anirudha Kumar Singh said that after a tip-off that Maoists were hiding near Karlakuta village, police raided the place.
"Some police personals sustained minor injuries in the gun battle that lasted for about 10-15 minutes," Singh said.
Some weapons and Maoist banners were seized from the spot, he added.
The district of Malkangiri, considered a Maoist stronghold, is 618 km from Bhubaneswar.