A Douglasville woman was killed Monday night when a driver ran a red light and collided with her vehicle in a Cobb County intersection, police said.

Pamela L. Sitton, 51, was pronounced dead at the scene, which was at the intersection of Mableton Parkway and Lee Industrial Boulevard in Mableton, Cobb County police said Tuesday in a news release. In all, four vehicles were affected by the crash.

Sitton’s father, Robert Pugh, drove to Mableton from North Carolina after he heard about her death, according to Channel 2 Action News. He came to the crash site to find the family dog, Max, who apparently ran off after the accident.

A friend of the family, who asked not to remain anonymous, said she and Pugh were still searching Monday evening for Max, described as a medium-sized black and brown dog. Max is about 2 years old, she said.

Investigators said the fatal crash involved a black 2005 Dodge Magnum that was traveling north and approaching the intersection on Mableton Parkway. The driver entered the intersection on a red light and collided with the left side of Sitton’s vehicle, a Toyota Sequoia, which had gone into the intersection on a green light, police said.

The Dodge driver was identified as Shanieca Waters, 20, of Mableton, police said. She was transported to Grady Memorial Hospital with serious injuries, and was listed in stable condition.

Sitton’s mother and 14-year-old son were also injured in the crash, police said.

Julie B. Pugh, 74, of Douglasville, was listed in critical condition Monday after being transported to Grady.

The family friend said Julie Pugh made it out of surgery successfully and the teenage boy had been treated for a broken finger and released from the hospital.

During the incident, Sitton’s vehicle rolled and collided with a Ford Mustang. Also, the Dodge collided with a Mercedez-Benz. The Mustang and the Mercedes-Benz were stopped at the red light on Mableton Parkway when the accident happened.

The Mercedes-Benz driver refused treatment at the scene, police said. The Mustang driver was listed in stable condition at Atlanta Medical Center.

Cobb County police are investigating the incident. Anyone with information is asked to call (770) 499-3987.