The police on Thursday arrested four naxals, carrying rewards to the tune of Rs 18 lakh on their heads, in Maharashtra's Gadchiroli district, an official said.

Based on an intelligence input, an anti-naxal operation was launched by the Special Operation Squad (C-60), Gadchiroli in the forest of Nelgunda within the limits of armed out post (AOP), Dhodraj, a release issued by Gadchiroli SP Ankit Goyal stated.