"A commander of C-60 battalion Chinna Menta was killed when a group of Naxalites attacked a police party at Nargonda in Bhamragarh taluka of the district while three other policemen were killed in Bejurpalli area in Allapally taluka, where another team was engaged in a face-off with ultras," Additional SP (Operations) Rahul Sheth told PTI.
The three other deceased policemen have been identified as constable Surendra Pathan, Sudhakar and Pungati (both SPOs), police said.
A chopper brought the bodies of all the policemen to Gadchiroli, besides the injured cops, they said.
The injured have been admitted to Gadchiroli Civil hospital.
Police claimed casualties among Naxals in the second encounter but their bodies have not been recovered so far.
Earlier, bodies of two Naxals were found from the encounter site at Nargonda. Sheth said the two Naxals appeared to be senior cadres and police have recovered pouches of AK-47 ammunition from them.