Suspected ULFA militants hurled a grenade near a Buddha temple in Lohit district of Arunachal Pradesh, injuring one person, official sources said on Monday.
The militants probably targeted a few army vehicles parked there but the grenade hit an auto rickshaw coming from the opposite direction, the sources said.
The grenade was lobbed yesterday by two motorcycle borne ultras near the temple at Namsai, a sub-divisional headquarters town. The injured has been hospitalised.
A combing operation by security forces was launched to trace the ultras who managed to escape.
Namsai was the scene of an encounter on April 10 when eight ULFA militants including two women belonging to its 28th battalion, were killed.
Army para-troopers were airdropped at different points of the Manabhum Reserve Forest in the district to intercept cadres of their banned outfit and prevent them from escaping to their base in Myanmar using the forest as a corridor.
The operation against the outfit was intensified in the wake of the killing of 70 Hindi speaking people in Tinsukia district of Assam recently.