Pakistani officials say unidentified attackers have fired rockets at a residential compound owned by a state-run oil company in the southwest, injuring several people.
The officials say the attack occurred Monday close to an oil field operated by the Oil and Gas Development Corporation near Quetta, the capital of southwestern Baluchistan province.
They say paramilitary troops guarding the compound returned fire, and that the exchange was still going on.
It was not clear who was responsible for the assault. A recent increase in violence in Baluchistan has been blamed on local tribesmen, who want a bigger share of the revenue from the region's mineral and oil resources.