One person was killed and three injured after a robbery-turned shooting inside a room of a Lake Highlands motel early Friday.

Just before 1:30 a.m., Police say at least one armed man entered the Motel 6 near 635 and Plano Rd and kicked in the door of a room before opening fire.

Police are investigating the circumstances, but witnesses told them it started as a robbery attempt.

It is unclear if the suspect or suspects knew the victims or what was actually taken from them.

All four victims were hit by gunfire.

A male victim was pronounced dead on the scene and three others -- two females and one male -- were transported to an area hospital with non-life threatening injuries.

At least one person was taken into custody. Two dogs were also removed from the room where the shooting took place.

No information was released on the other suspect(s) believed to have fled the scene in an unknown vehicle.

We will update this story as we learn more.