NDFB-Songbjit militants on Sunday attacked a joint police and CRPF team, which retaliated injuring two militants in Sonitpur district along the Assam-Arunachal Pradesh, official sources said.

The militants hurled a grenade at the security forces at Laijanguri, under Rangapara police station, and in the ensuing encounter two extremists were injured, the sources said.

Operations were on in the area against the National Democratic Front of Bodoland insurgents, the sources said.

The NDFB-S had unleashed violence in the twin districts of Baksa and Kokrajhar since May 1, killing 32 persons, injuring several others and rendering thousands homeless.