Coquitlam RCMP are still searching for a suspect in a hit-and-run that left an 85-year-old woman dead Thursday afternoon.

The woman was hit by a vehicle in the driveway of a home-based business on Austin Avenue near Schoolhouse Street just before 2 p.m, police said. The driver then left the scene.

She was taken to Royal Columbian Hospital in critical condition and later succumbed to her injuries. The woman's identity has not been confirmed.

A neighbour told CTV News he tried to administer CPR to the woman before emergency crews arrived.

Trevor Stewart said he heard a scream and looked over to see a car backing up in the home’s driveway before hearing another scream.

He ran over to the house to find the elderly woman, who he said lives at the home with her son and who often prays and walks in the yard.

“I saw her red scarf and her clothes sitting there so I immediately knew it was her,” he said. “I went in the house to see if there was anybody there and I couldn’t find anybody so I ran back and took her vitals and then I started doing some CPR on her.”

He said the woman worked as a greeter at her son’s acupuncture business, which operates out of the home.

A description of the suspect vehicle has not been released, but neighbours said it may have been a silver vehicle with two people in it.

One witness said he wasn’t sure whether the person behind the wheel knew they hit someone, which police said could be a possibility.

Mounties are now looking for any other witnesses who may have seen incident.

Anyone with information is asked to call 604-945-1550 and quote file number 2014-1438.