UPDATE: Only the left lane remains closed on I-5 at Capitol Blvd in Olympia the WSDOT reported at 12:50 a.m.
The WSDOT reported that an investigation into an earlier collision continues to block three of four lanes on northbound Interstate 5 at Capitol Boulevard in Olympia.
The accident happened at milepost 105 at around 11:40 a.m.
The State Patrol and WSDOT emergency personnel are on the scene. Current back-ups on northbound I-5 are beyond Custer Way, and backups onto US 101 reach beyond the Crosby overpass.