MINNEAPOLIS — A bus carrying students and their chaperones home from a band trip to Chicago rolled over on a highway Saturday, killing one student and injuring the dozens of others on board, authorities said.

The bus was traveling west on Interstate 94 about 30 miles northwest of Minneapolis when it rolled shortly before 6 a.m. and skidded into a ditch, said State Patrol dispatcher Tom Aspling. There were 48 people aboard, including the driver.

The cause of the crash near Albertville wasn't immediately determined. The weather at the time was dry.

The bus was one of two carrying students from Pelican Rapids High School, according to the western Minnesota school's Web site.

The State Patrol identified the victim as Jessica Weishair, 16, of Barnesville.

The students and chaperones were taken to several hospitals, and at least one person remained in critical condition, according to the hospitals. The students on the second bus were unhurt and taken to a church in Albertville.

Colleen Moerke, wife of Pelican Rapids High School Principal Glen Moerke, told the Star Tribune of Minneapolis that the students had performed Friday in Chicago over spring break and were to return to the school Saturday morning.

A call to the bus company, Richards Transportation Co. in Moorhead, wasn't immediately returned.