( CNN ) -- A Greyhound bus overturned in southeastern Pennsylvania early Saturday , injuring at least 14 people , none of them seriously , the company said . Officials said earlier that as many as 25 passengers could have been involved in the wreck , but Greyhound spokeswoman Maureen Richmond said later that a total of 18 people were on the bus . Four of those passengers were uninjured and able to continue with their scheduled trips , Richmond said . Fourteen others , meanwhile , were transported to local hospitals , treated and released , she said . The driver was among the injured . The bus originated in New York with a destination of St. Louis , Richmond said . The bus was on the Philadelphia to Columbus , Ohio , leg of the trip at the time of the accident , she said . CNN 's Deanna Proeller contributed to this report .
NEW : All the injured have been released from hospital care . The bus was headed from Philadelphia to Columbus , Ohio .