No one was injured after a school bus hit a patch of black ice Tuesday morning and crashed, officials say.

District officials say it happened around 7:00 AM on Parchwood Drive near Ferguson Valley Road.

According to Mifflin County School District Superintendent Van Varner, three Strodes Mills Elementary students were on board the bus at the time of the crash.

Varner says the driver came around a curve and hit a patch of black ice, causing the bus to start to tip over. Varner says the bus came to rest against a tree, which stopped the bus from tipping over.

The bus driver and students were not able to exit the vehicle through the front of the bus, but were able to crawl out the back.

Varner says people passing by, including the district's high school nurse, stopped to help and called 911.

The three students were evaluated by EMS and released to their parents. The bus driver was also uninjured.