SAVANNAH, N.Y. - A school bus with 37 students on board crashed into the back of a snowplow Thursday morning, while on the way to school. Police said Thursday night that the bus driver and three students are in critical condition.

The crash happened just before 8 a.m. Thursday in the Town of Savannah, about halfway between Rochester and Syracuse.

The Wayne County Sheriff's Office and the superintendent of Clyde-Savannah schools said that 37 students were on the bus, on the way to the Middle School, when the bus rear-ended the Town of Savannah snowplow. The crash happened on Route 31 near Hogback Road. Police said that the snowplow was making a right turn.

Police said that the driver and two students were trapped on the bus, which was badly damaged in the collision.

Sheriff's deputies on scene said the bus driver was trapped for more than an hour, as fire crews worked to get her out. Ruth Y. David, 48, was then flown by Mercy Flight to Upstate Medical University Hospital in Syracuse, according to police. The hospital said she is in good condition.

Also flown to Syracuse for treatment was Isiah Lee, 11, according to the superintendent. The boy remains in serious condition, according to University Hospital and police.

Several students were taken to Newark-Wayne Community Hospital by ambulance. Two of the students were later airlifted to Golisano Children's Hospital at the University of Rochester Medical Center.

The hospital lists Kailyn Vergilia in guarded condition.
Dakota McAvinney has been upgraded to satisfactory condition.

The driver of the snowplow, Terry O'Connor, 55, was not injured.

Police said the cause of the crash is under investigation.