The Gresham Police officer observed two injured people at the crash scene and requested two ambulances to the location.
Portland Police Bureau's East Precinct and Traffic Division officers responded to the scene to take over the investigation.
Preliminary information suggests a 1999 Ford F-350 pickup traveled southbound on Southeast 151st Avenue and turned east onto Southeast Stark Street at the same time a motorcycle with two occupants traveled west on Southeast Stark Street. The Ford F-350 and motorcycle collided at the intersection of Southeast 151st Avenue and Southeast Stark Street.
Emergency medical personnel arrived on scene and rendered aid to the injured motorcycle operator and passenger. The adult male motorcycle operator is believed to have sustained critical life-threatening injuries. Preliminary information suggests the adult female motorcycle passenger sustained serious but non-life-threatening injuries. Both of the injured were transported to an area hospital by ambulance.
The driver of the Ford F-350 remained at the scene, is cooperating with the investigation, and was not injured during the crash.
Southeast Stark Street will be closed in both directions between Southeast 148th Avenue and Southeast 153rd Avenue during this crash investigation.
Anyone with information regarding this crash should contact the Portland Police Bureau non-emergency line at 503-823-3333.
There are no updates expected this evening.
The Portland Police Bureau is committed to working with our partners in government and the community to create safer streets and work towards reducing, and eventually eliminating, traffic fatalities as part of Vision Zero.
To learn more about the City of Portland's Vision Zero effort, please visit: http://www.portlandoregon.gov/transportation/40390