Ten militants, including top commanders were killed, and another surrendered in three different encounters in south Kashmir on Sunday.
A civilian Niyaz also died, sources said, adding that four soldiers were injured in the exchange of fire.
Massive protests are going on in almost entire south Kashmir, where sources said over 40 people were injured in security force action.
General Officer Commanding (GOC) 15 Corps and Director General of Police (DGP) will address a press conference later in the afternoon in south Kashmir.
Meanwhile, internet mobile service in most parts of the south Kashmir has been suspended since late last night to prevent spread of any rumours.
The authorities have also suspended train service between Srinagar and Banihal, Jammu, passing through south Kashmir for security reasons.
Official sources said that on a tip-off about the presence of militants, Army, Special Operation Group (SOG) of Jammu and Kashmir police and CRPF launched joint search operations at Dragad and Kachdoora in Shopian district late last night.
However, when the security forces were moving towards particular areas in the both the place, the militants hiding there, opened fire, they said, adding that security forces also retaliated ensuing a fierce gun battle. Intermittent firing continued during the night at both the places, they said.