ISLAMABAD, May 29 (Xinhua) -- At least 10 people including four policemen were injured as a bomb went off in Pakistan's southwest Balochistan province, local media reported.

A police vehicle, which was on its routine patrolling across the city, was targeted by a roadside planted bomb on the outskirts of Naseerabad district, Dunya News said late Monday.

The injured people were shifted to a nearby hospital where at least two of them were said to be in critical condition.

No individual or group has claimed the attack yet.

The security forces cordoned off the area for investigations.