(Bellevue) – The Washington State Patrol Criminal Investigation Division (CID) is seeking the public’s assistance in their investigations of three collisions which occurred in the Seattle area over Seafair weekend.

Detectives often receive valuable information from witnesses who might have been nearby or seen the vehicles involved just before the crash, even if they didn’t witness the event itself.

The first case is a motorcycle fatality collision that occurred on August 2. The collision occurred in the northbound lanes of Interstate-5 south of State Route 599 in Tukwila at approximately 4:47 PM.

If you saw anything or have any information about this collision please contact Detective Russell Haake at 425-401-7717 or Russ.Haake@wsp.wa.gov.

Detectives are also investigating a serious injury collision that occurred the next day, on August 3. The one car serious injury collision occurred in the northbound lanes of Interstate-5 at Lake City Way (milepost 170) at approximately 3:09 AM.

The collision involved a white 2000 Chevrolet Impala and the suspected driver is being investigated for vehicular assault.

If you have any information on this crash please contact Detective Vik Mauro at 425-401-7746 or Victoria.Mauro@wsp.wa.gov.

Finally, detectives are investigating a one-car serious-injury collision that occurred shortly before 5:30 a.m. on August 3, in the northbound lanes of Interstate-5 at Mercer Street.

The collision involved a green 1998 Toyota Rav4 and the suspected driver is being investigated for vehicular assault.

If you have information on this collision, please contact Detective Russell Haake at 425-401-7717 or Russ.Haake@wsp.wa.gov.