At least three policemen were injured when a bomb went off at their vehicle in Pakistan's northwest Peshawar city on Monday night, local media reported.

Dunya TV said that the police vehicle, carrying three cops, was on its routine patrolling when it came under attack at the outskirts of Peshawar, the capital city of the country's northwest Khyber Pakhtunkhwa province.

Police said that the some unknown militants blew up the roadside planted explosives with a remote controlled device as the police vehicle passed by them, and fled the scene.

The injured policemen were shifted to Lady Reading Hospital in the city where one of them is said to be in critical condition.

No group has claimed responsibility for the attack yet.

Police cordoned off the area for investigations. 
Source:XINHUA