(CNN) -- A bus wreck on a major New Jersey parkway caused minor injuries to six people Wednesday morning, the New Jersey State Police said.
The coach bus overturned on the Garden State Parkway shortly before 5:30 a.m. with 22 people on board, said Sgt. Miguel Estrada, a spokesman for the New Jersey State Police.
The bus flipped off the right side of the highway, prompting authorities to shut down the center and right lanes to traffic for about two hours, Estrada said.
Estrada said the driver was a 35-year-old Brooklyn, New York, man, and that police believe driver fatigue was the main factor in the crash.
The passengers were traveling to Lakewood, New Jersey, after attending a rabbi's wedding in New Square, New York, according to a spokesman for the bus company, Darkanu.
The injured were transported to local hospitals, Estrada said.