A Powder Springs man was killed early today when his pickup truck ran off the road and slammed into several trees.

David W. Jones, 27, was driving alone in a black 2001 Ford F-150 just before 3 a.m. when he ran off Oglesby Road near Five Oaks Place in the Powder Springs area, Cobb County police spokesman Officer Mike Bowman said in a news release.

Jones was dead at the scene.

He was not wearing a seat belt, and alcohol is being looked at as a possible contributing factor, Bowman said.

It was the second of two fatal wrecks in less than five hours in south Cobb.

An 18-year-old, Eric R. Lynch of Mableton, was ejected from the blue 1983 Honda Civic he was driving when he lost control of the car on wet pavement and slammed into a utility pole off Pisgah Road in Mableton about 10:15 p.m. Sunday.

He was pronounced dead at Grady Memorial Hospital in Atlanta.

Lynch also was not wearing a seat belt, Bowman said.

Police ask anyone with information that could help investigators in either case to call 770-499-3987.