Mounties are investigating a hit-and-run that killed two pedestrians in Coquitlam Wednesday afternoon.

The victims, a man and woman in their 60s, were struck by a grey truck as it turned left onto Austin Avenue from Gatesnbury Street at around 3:30 p.m. Both died at the scene.

Their bodies could be seen covered by blankets just east of a marked crosswalk.

About an hour after the accident, several RCMP cruisers surrounded a truck matching the suspect vehicle description outside a Coquitlam home. Cpl. Jamie Chung confirmed an older man was arrested.

"“We don’t believe alcohol or drugs or speed are factors at this point," Chung said. 

The collision closed Austin Avenue between Schoolhouse Street and Marmont Street, and authorities say it’s unclear when the roads will reopen. Drivers are advised to use alternative routes.

Anyone who witnessed the crash is asked to call Coquitlam RCMP at 604-945-1550 and quote file number 2013-34951, or contact Crime Stoppers at 1-800-222-TIPS.

Watch CTV News at Five and Six for the latest on this developing story