A collision on northbound Interstate 5 near Grand Mound is blocking two lanes of traffic, according to the Washington State Department of Transportation.
The collision occurred just after 5:30 p.m. at milepost 88, near where Old Highway 99 Southwest crosses I-5. All lanes were blocked in the minutes after the crash, and traffic was passing on the shoulder.
Two lanes were still blocked just before 6 p.m.
This is a developing story and may be updated.