Washington State Patrol detectives are investigating a collision that occurred Saturday, Nov. 29, 2014 on I-5 just north of I-405 at approximately 6:00 p.m., and are seeking the public’s help.

The collision involved the injury of an on-duty, Tukwila firefighter who was attending to the driver of a previous collision involving a white pick-up truck.

The firefighter was struck during a second collision involving a red Ford Mustang and the same white pick-up truck.

Detectives are requesting information regarding the collision and/or any observations of the vehicles prior to the incident.

Anyone with information regarding this collision is asked to contact WSP Detective Sergeant Jerry Cooper at [email protected] or 360-805-1192 or Detective Ruth Medeiros at [email protected] or 425-401-7719.