The driver of a passenger bus involved in a fatal multi-vehicle collision on Interstate 95 in Virginia has been charged with involuntary manslaughter, state police confirmed Saturday.

Five people died and 44 others were injured in the crash, which occurred around 2:35 a.m. Friday in Stafford County, approximately 45 miles south of Washington, D.C.

Jing S. Dong, 48, of Staten Island, New York, was charged with two counts of involuntary manslaughter, with additional charges anticipated, according to Virginia State Police. Dong sustained injuries in the incident.

The National Transportation Safety Board and police indicated that as traffic slowed for a work zone, the bus maintained its speed and collided with a Chevrolet Suburban. This initial impact propelled the Suburban into an Acura SUV and other vehicles. The Acura subsequently caught fire.

Four of the deceased were occupants of the Acura: a 45-year-old man, a 44-year-old woman, a 13-year-old girl, and a 7-year-old boy, all from Greenfield, Massachusetts. The fifth victim, identified as Priscilla R. Mafalda, 25, of Worcester, Massachusetts, was traveling in the Suburban.

Of the 44 individuals transported to hospitals, three were reported to be in critical condition. The bus, en route from New York City to Charlotte, North Carolina, was carrying approximately 34 passengers.

Tom Chapman, a board member with the NTSB, stated Saturday that it was premature to determine the exact causes of the collision. The NTSB is examining potential contributing factors, including driver impairment and mechanical issues, and is requesting any available video footage to aid the investigation.

Investigators are also working to ascertain if the driver applied any brakes before the crash. Chapman noted that the speed and severity of the impact suggested limited or no braking occurred, but further investigation is needed to understand the events aboard the bus.