Police were on the scene of a serious car crash at the intersection of North Main and Chamberlain streets.
North Main Street between Chamberlain and Harlow streets was shut down for about five hours, according to emergency dispatchers.
Large vehicles on Route 9 were detoured onto Parkway North.
Officials said that the driver of a single vehicle traveling south may have fallen asleep at the wheel or may have been fatigued and hit a utility pole.
The driver had minor injuries, officials said.