An overturned tractor-trailer is slowing traffic in Mesquite along Interstate 635 Friday afternoon.
Mesquite Police said a crash involved an 18-wheeler that overturned in the southbound lanes near Town East.
No injuries have been reported and as of 3:30 p.m. a tow truck was at the scene working to get the rig upright and cleared from the roadway.
The cause of the crash has not yet been confirmed.
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One lane of 635 is getting by. Drivers in the area are advised to find alternate routes or expect delays.