PORTLAND, Ore. (KOIN) — Police activity on Interstate 5 caused traffic delays on the I-5 bridge Thursday evening.

According to the Washington State Department of Transportation, traffic is stopped on I-5 north and southbound lanes from milepost 0 at State Route 14 to milepost 1 at Mill Plain.

The police activity appears to be on the Washington side of the bridge.

WSDOT travel data

Shortly before 12:30 a.m., WSDOT SW posted on Twitter saying the area had cleared.

This is a developing story.