Five siblings walking along a South Jersey road were hit by a car Tuesday night around dusk, killing one of the siblings and seriously injuring three others.

Emergency personnel at the scene of a fatal accident involving 5 brothers and sisters in Southampton (CBS Philly)

6ABC reports the older children were pulling the younger ones in a red wagon along the shoulder of Buddtown Road in Southampton when a car struck them. In video of the of the accident scene shown by 6ABC, the road appears to be very narrow with no marked shoulder or street lights.

The report says a 3-year-old died due to the crash. Three others are in critical condition, with one "extremely critical," it says. The driver was reportedly co-operating with police.

"Besides the two kids lying on the side of the street, there was a girl lying in the middle of the street. The neighbor across the street was doing chest compressions on her," witness Paul O'Neill told 6ABC, which reports the driver was traveling at the speed limit.