UPDATE 8:13pm: According to theVermont State Police, 45 people were on the bus, 17 of them wereinjured. The driver is the only person critically injured.
Another bus from the tour company came and picked up the uninjured passengers. They have continued on their ski trip.
(NECN/WPTZ: Putney, VT) - As many as 40 people were injured when a bus carrying UMass-Amherst students headed to Quebec, rolled over just after 4 p.m. At least six of the injuries are believed to be critical.
Video from WPTZ shows the bus on its side, on the southbound side of I-91 in Putney, Vermont.
Ambulances were called from a number of New Hampshire and Vermont communities.
Brattleboro Memorial Hospital reports receiving what a spokesman termed 'walking wounded', while more seriously injured patients were being taken to hospitals as far away as Albany, N.Y. and Dartmouth-Hitchcock Medical Center in Hanover, N.H.
Liz Brown, a spokeswoman for Tour World, the operator of the trip, says the bus driver was taken to Dartmouth-Hitchcock in critical condition. She would not confirm reports that the driver had a heart attack.
Tour World is sending another bus from Pennsylvania to Vermont. Brown confirms it is a UMass ski club that was on its way to Quebec City.