Four Naxalites, carrying a collective bounty of Rs 36 lakh, were killed in an encounter with police in Maharashtra's Gadchiroli district on Tuesday, a senior official said.

The police received information on Monday afternoon that some Naxalites had entered Gadchiroli from neighbouring Telangana by crossing the Pranhita river with an aim to carry out subversive activities amid the model code of conduct in place for the upcoming Lok Sabha elections, Superintendent of Police Neelotpal said.