West Bengal Chief Minister Mamata Banerjee on Tuesday expressed her profound shock to hear about the terror attack in Srinagar.

Offering her deepest condolences to the bereaved families, Ms Banerjee said, " Shocked to hear about the terror attack in Srinagar! To all the brave personnel who lost their lives, my heart goes out to you. "

" I salute your supreme sacrifice. This nation will never forget you, " she added.

Around 25 policemen were in the bus which came under attack in Zewan.

Two foreign and one local militant involved in Zewan attack that left three cops dead and 11 others injured.

One more policeman who was injured in the Zewan Srinagar attack on Monday evening succumbed to his injuries taking the toll in the attack to three, official sources said here on Tuesday.

Two policemen including an Assistant Sub Inspector and a Selection Grade Constable were killed and 12 others were injured when militants ambushed a police bus on the outskirts of Srinagar at Zewan.

" One more cop succumbed to his injuries taking the toll to three," they said.

Police said one of the attackers was also injured in retaliatory firing.