At least two policemen were killed and six others were injured when some unknown gunmen opened fire at a police mobile in Pakistan's southwest province of Balochistan on Wednesday night, local media reported.

Dunya TV reported that the attack was launched at about 9:15 p. m. local time when at least four gunmen riding motorbikes opened fire at a police mobile carrying salaries for the local police employees, in Awran area of Balochistan, a small town located near provincial capital of Quetta.

The police van with eight policemen on board was on its way to Awran from Quetta when it came under attack on the main highway.

The attackers snatched 6,460,000 rupees (68,723 U.S. dollars) from the policemen and escaped from the scene.

The six injured policemen including the cashier have been shifted to hospital in Awran.

No group claimed responsibility for the attack yet.

Police teams cordoned off the area and an investigation into the incident has been kicked off.