FREDERICK, Md. - Maryland State Police say the westbound lanes of Interstate 70 just west of Frederick are closed due to an overturned tractor-trailer.
Police say they expect the highway to be closed for an extended period of time. Traffic is being rerouted onto U.S. 40.
Police say a tractor-trailer overturned at the 46-mile marker, between Braddock Heights and Middletown, at about 3 p.m.
They say the single-vehicle accident caused a personal injury but they had no further information.
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