A crash involving a school bus in Bradford County, Pennsylvania is being blamed on a medical condition.

State Police say the bus carrying 30 elementary and middle school students left Milan Road in Smithfield Township at 7:40 a.m. March 11, hit one tree, knocking it over before hitting a second tree.  The bus came to rest against that tree.

Eight children and the 44 year old driver, where taken to the hospital for evaluation.

The investigation is continuing.

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