A semi truck overturned and is blocking all northbound lanes on state Route 509 in Fife, according to the state Department of Transportation.
The crash occurred about 11:20 a.m. near Alexander Avenue.
Drivers are advised to avoid the area and use alternate routes.
Traffic is being detoured at Port of Tacoma Road. Northbound SR 59 is closed from Milwaukee Ave to 54th Avenue and Alexander Avenue is closed at 12th Sreet East.
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Details on how the semi overturned were not immediately available.
This is a developing post. More information will be added when it is released.