The attack took place at a CRPF camp at Gagaran, about 55 km from here.
"In retaliatory firing by the CRPF, four people were killed. CRPF recovered two weapons from the slain people," police said.
Officials said two of the dead were militants.
"Two other people killed in the incident were civilians. The exact identity of the two slain militants is being established," police said.
Several people protested in Shopian town after the incident, saying all the four slain people were civilians. Protesters also pelted stones at the local police station.
Curfew was imposed in the town as tension gripped the area after news of the firing.
--IANS (Posted on 07-09-2013)