Unidentified motorcyclists in Dera Ghazi Khan opened fire on a cement factory's security van on Friday, killing two and critically injuring another, according to police.

The incident, which took place in the vicinity of Kot Mubarik police station, saw armed gunmen on motorcycles open indiscriminate firing on the security van of DGK Cement.

The victims were transferred to the D.G Khan Medical College, where two of them succumbed to their injuries.

District police officer (DPO) Atif Nazir told Dawn that the attack was carried out when the van was carrying the cement company's employees to its factory.

The DPO told Dawn that he was confident of nabbing the assailants soon, adding that police teams have been constituted in the wake of the deadly attack.