An 18-year-old Wareham woman was killed Sunday night after she reportedly got out of the car she was traveling in on Route 195 in Marion at roughly 6:45 p.m., and was struck by a vehicle.

State Police described the victim, identified as Kourtney Vieira, as an "occupant" of a nearby vehicle that had reportedly run out of gas. It was not immediately clear whether Vieira was the driver or a passenger in the vehicle.

It is unclear why Vieira was walking down the highway, police said. Witnesses state, and the investigation indicates, that Vieira had been in the right-hand travel lane when struck, according to police.

David Benevides, 71, of Onset, was driving the minivan, a 2008 Honda Odyssey, that hit Vieira, according to State Police.

A police officer performed CPR at the scene, and Vieira was transported to Tobey Hospital, where an emergency medical helicopter was waiting. Vieira died at the hospital, however.

The accident remains under investigation.

Vieira was a graduate of Wareham High School. A prayer was said for her Monday morning at the annual Martin Luther King Jr. Community Celebration, which honors Wareham students.

Since the accident, Vieira's friends, family members, former teachers, and even many who did not know her have expressed condolences and shared memories of her on a Facebook page dedicated to her memory. Click here to see it, or search for "R.I.P. Kourtney Vieira" on Facebook.

We will update this story as more information becomes available.