Fatal crash involving pedestrian on 495 in Marlborough

Update 8:40 AM - Metro Traffic is reporting that traffic is backed up 17 miles.

(NECN: Jennifer Eagan - Marlborough, Mass) - Massachusetts State police are investigating a crash involving a pedestrian and a vehicle on the left travel lane of Route 495, south of exit 23C, In Marlborough.

The accident happened around 5:30 AM on Monday morning.

Police have not released the name of the pedestrian and are searching for the car and driver involved in the fatal accident.

NECN reporter Jennifer Eagan is Marlborough with more on the accident.

Traffic advisory from Massachusetts State Police Office of Media Relations:

Only the left travel lane of Route 495 southbound, south of exit 23C, in Marlborough is currently available for travel.  The right and middle travel lanes, as well as the breakdown lane have been closed while Troopers investigate the circumstances of a fatal crash.

Preliminary investigation indicates that there was a crash involving a pedestrian and a vehicle and that pedestrian has been pronounced deceased by responding EMS personnel.

The lanes of the highway are expected to be closed for at least another hour, possibly longer, while the investigation proceeds.  

A follow-up release will be issued at a later time.  The identity of the pedestrian will not be released until proper family notification has been made.

Commuters are encouraged to seek alternative routes of travel.