UPDATED at 2 p.m.
Drivers are being detoured around an overturned semi truck that is blocking both directions of River Road near 31st Avenue Court East.
The Washington State Patrol reports that a car and semi collided just east of the Tacoma city limits. There were no serious injuries.
Northbound drivers are being diverted off River Road at Pioneer Way. Southbound drivers are being diverted off at Gratzer.
Troopers are on the scene.