At least 14 people have been hurt in a crash involving more than 40 vehicles on a snowy stretch of Interstate 95 in Maine.

State police say the pileup in Etna, near Bangor, happened at about 7:30 a.m. Wednesday in heavy snow and involved cars, a school bus and a tractor trailer. No fatalities were immediately reported, and police said at least two of the injured were in serious condition.

Eastern Maine Medical Center says it had received 11 patients at its emergency department by 10 a.m.

Police say the school bus was carrying three passengers, none of whom were injured. Troopers hope to re-open one northbound lane by early afternoon.