DALLAS- Police are investigating after a deadly shooting outside a gas station early Saturday morning.

Just before 3 a.m. the victims were pumping gas at a Texaco on Singleton Boulevard when words were exchanged between the gunman and the victims before shots were fired.

One victim was pronounced dead at the scene, the other two were transported to a local hospital with non life threatening injuries.

The gunman is still at large.

The incident is still under investigation and police have not released any information on the gunman or the victims.

Stay with WFAA.com for details on this developing story.