The incident led to tension in Srinagar and adjoining Pulwama, Shopian and Anantnag districts with protesters taking tostreets.
In a separate development, a cardiologist was critically injured and two police guards killed when militants attacked them in Pampore town in Pulwama district of the Valley.
Four protesters were killed and over two dozen others were injured when protesters stormed a camp of the Border Security Force (BSF) in Shaida Gool village of Ramban district, 145 km from Srinagar, police said.
Alleging desecration of a mosque and beating up of an Imam by some BSF personnel, a group of protesters stormed the camp in Gool town of Ramban district.
The guards at the camp fired at the protesters killing four of them and injuring two dozen others, police said.
Ten of the injured, five of them with critical bullet injuries, were airlifted by helicopters to hospitals in Jammu city for specialised treatment, police said.
Some BSF personnel were also injured in the incident. A BSF soldier sustained a bullet injury during the clashes.