An 18-wheeler overturned on the Dallas North Tollway near Belt Line Road Wednesday, closing all northbound lanes.
A pickup truck and a SUV were also involved in the crash. Firefighters from Dallas and Addison were working to extricate at least one trapped driver.
The condition of those involved in the crash are not yet known.
Northbound traffic on the tollway is being rerouted to the service roads.
The tollway reopened Wednesday afternoon well before the afternoon rush hour.