PORTLAND, Ore. – A woman was shot in Southeast Portland Saturday afternoon and suffered serious but not life-threatening injuries, according to police.

Portland police officers heard gunfire at around 1:46 p.m. in the area of Southeast 117th Avenue and Stark Street. As officers were searching for the source of the gunfire, they came across a female shooting victim in a vehicle in the area of Southeast 112th Avenue and Stark.

The victim’s identity was not immediately released.

Police said it appears an unknown person fired shots from a passing vehicle that struck the victim, who was in a different vehicle.

Gang Enforcement Team detectives believe the shooter may have mistaken the victim's car, a black Mercedes Benz, for a similar vehicle that was involved in a shooting earlier this week at a Taco Bell on Northeast Martin Luther King Jr. Boulevard.

Police arrested 18-year-old Amir Isaiah Walker in connection with the Taco Bell shooting. Investigators said Walker was driving a black Mercedes Benz, which was seized as evidence.

The victim in Saturday's shooting has no connection to gangs or criminal activity.