Update as of 7:58 a.m.: WSDOT says the wreck has been cleared.
Initial post: A collision on southbound Interstate 5 in Tacoma is blocking three lanes and causing massive backups, according to the state Department of Transportation.
The wreck happened about 7:30 a.m. near 48th Street South.
Vehicles were slowing inching past the crash on the shoulder and in the right lane.
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Details on the collision were not immediately available
Stacia Glenn: 253-597-8653