At least four persons, including two CRPF personnel, were injured when militants struck the Lal Chowk, commercial hub of the city, on Tuesday morning, the fourth attack here within a week.

Militants made a dramatic appearance in Koker Bazar area of Lal Chowk and fired a volley of shots on CRPF personnel patrolling the area, injuring two of them, police said.

Two civilians also received gun shot wounds in the firing. All the four injured have been admitted to a hospital.

Police and security forces immediately cordoned off the area to nab the militants responsible for the firing, which triggered panic in the over-crowded area. Shopkeepers also abandoned their shops and ran for cover.

The incident was the fourth in a series of attacks carried out by militants in the city within a week.

On March 14, militants attacked a CRPF patrol with grenades near a police station in downtown Srinagar, killing a jawan and injuring five others.

Earlier on March 7, militants shot dead a surrendered militant Aijaz Ahmad Dada outside his house at Bemina. The incident was followed by the killing of special police officer Mohammad Arif Bhat by militants near Abu Baker Masjid in posh Jawahar Nagar locality on March 12.

In view of intelligence reports that militants have sneaked into the city, police and paramilitary forces have been put on high alert.