Charter bus carrying UW band members overturns on I-90 near George

UPDATE: The University of Washington marching band will not perform during the school's annual rivalry game against Washington State University, after one of its three charter buses rolled onto its side while traveling from Seattle to eastern Washington for the game.

Athletics Director Jennifer Cohen said in a statement Friday the band members decided they needed to recover and return home instead of continuing on to Pullman, where the teams were set to play Friday night in the Apple Cup.

The bus crashed Thursday evening on an icy stretch of Interstate 90 in central Washington. Of the 56 people on board, 47 were taken to hospitals for evaluation or treatment. The university said Friday morning that two remain under medical care for injuries that are not believed to be life threatening.

Original Story: 

A charter bus carrying University of Washington band members overturned Thursday night on I-90 near George. 
The crash happened before 5:30 p.m. on the eastbound lanes at Milepost 143, three miles west of George. The crash blocked a frontage road. 
Of the 56 people on board, 47 were taken to hospitals for evaluation or treatment. 
The cause of the crash is under investigation but troopers said icy roads could have been a factor.
The bus was one of six charter buses that were heading east for Friday's Apple Cup in Pullman.

More news from KIRO 7