COBB COUNTY, GA (WXIA) -- Police were investigating a shooting Tuesday afternoon off of Macland Road.

Police said the person was shot in the arm off of Macland Road in a car that may be related to a second vehicle. They said they have not located the second vehicle.

They said the injured person was taken to Wellstar South Cobb Hospital for treatment of a non-life-threatening condition.

No other injuries were reported.

MARIETTA, Ga. – An 18-year-old driver faces several charges after striking and killing a 78-year-old man as he walked on the sidewalk in Marietta on Sunday.

Ashli Mitchell has been charged with second-degree homicide by vehicle, failure to maintain lane, driving too fast for conditions, driving without a license, and required tire tread depth. She also faces a child restraint violation.

According to Marietta Police Officer David Baldwin, a minivan was traveling northbound on Franklin Road when the driver lost control and left the road, striking a man walking on the sidewalk. The van continued through a fence and down an embankment, Baldwin said.

The pedestrian, identified as Joe Lewis Burns, was transported to WellStar Kennestone Hospital, where he was pronounced dead, Baldwin said.

MARIETTA, Ga.-- Marietta Police are still working to determine what happened in the moments before an 18-year-old driver jumped the curb and crashed into an elderly man out for a walk.

Marietta Police say they're still trying to determine who was at fault. They've been interviewing witnesses, including the children who were inside the minivan at the time of the crash.

"There's a lot of possibilities. The roads were wet. It was raining at the time. We don't know if it was a distracted driver. If there was a malfunction with the vehicle. If the driver just lost control or was distracted by a child. We just don't know yet," Marietta Police spokesman David Baldwin told 11Alive's Donna Lowry.