A serious motor vehicle collision closed a portion of Grey Road 4 for approximately two hours last Thursday afternoon. An eastbound vehicle was passing a school bus that was travelling in the same direction and struck a vehicle travelling in the opposite lane. One person suffered non life threatening injuries in the crash. The driver of the west bound vehicle, an eighty year old man frm Durham was not injured. There were no children on the school bus at the time of the crash. Charges are pending upon completion of the investigation.