An unauthorized tractor-trailer crashed into an overpass on the FDR this morning around 4:30 a.m., according to the Office of Emergency Management. The incident prompted a rush hour traffic jam on the FDR, with northbound lanes closed from 61st Street down to 34th Street.

Tractor trailer trucks are not allowed on the lower level of this section of the FDR, according to an FDNY spokesman, who said no one was injured in the crash. A DOT spokesman was unable to confirm the current traffic status now says that as of 9:45 a.m. the truck has been removed and all lanes have been reopened.

PIX 11 reports that the truck "hit about four overhead supports, gnarling its trailer. Heavy-duty trucks trying to clear the crash appeared to have backed up the tractor trailer, only to have the truck hit another support."