The Naxal-affected district also witnessed IED blasts at two other places since morning.
The skirmish took place at Tumdikasa near Murumgaon Area Operation Post of state police around 4 pm when a team of election officials, CRPF and police was returning, after the voting was over, on foot, an official said.
Before the polling party could reach the police post, a group of Naxals opened fire, and CRPF and police personnel retaliated, he said.
The Naxals fled after some time, and no casualties were reported.
Gadchiroli-Chimur was among the seven Lok Sabha constituencies in Maharashtra where polling took place Thursday.
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