Suspected militants hurled grenade and fired shots at a police check post near Kani Pora on the outskirts of Srinagar city on Sunday evening.
Preliminary reports suggest that a police party, while checking the vehicles, tried to stop a vehicle when suspected militants hurled a grenade.
"A live grenade was thrown at us. It did not explode," said a senior police officer on the condition of anonymity.
The fleeing militants also fired some shots before speeding up from the stop as the police personnel took positions to retaliate the fire.
There were no casualties in the incident. A posse of police personnel and senior police personnel rushed to the spot.
Security has been beefed up on the national highway. Reports suggest that the vehicle fled towards the Srinagar-Baramulla highway.
The incident occurred two days after the militants attacked another police party, killing four cops in north Kashmir's Hygam area.
Meanwhile, indigenous Hizbul Mujahideen has announced a reward of Rs 5 lakh to those who killed the cops.
Hizb-ul-Mujhadeen spokesman Baleeg-u-Deen called a local news agency and said, "Those Hizb men will be rewarded who participated in Hygam, Sopore, encounter and killed four policemen. Hizb chief has congratulated its Intelligence section for keeping a strict vigil over anti-movement elements."
The spokesman warned the policemen to mend their ways and don’t indulge in "anti-movement activities."