Police are looking for witnesses to a serious crash on Highway 1 in Abbotsford Monday night that sent four people to hospital and closed the freeway for seven hours.

Four Surrey men were severely injured when an eastbound 2003 GMC Envoy lost control while approaching the Fraser Highway exit and struck the centre median before rolling several times around 8: 37 p.m.

The front passenger was ejected from the vehicle, but all the men are in stable condition in hospital and expected to survive.