UPDATED | September 28, 2018, 8:04 AM

RICHARDSON, Texas (CBSDFW.COM) – Two children and the driver on board a Richardson ISD school bus are okay after it overturned in a crash Friday morning, police say.

Police are investigating the crash involving the bus and another vehicle at West Campbell Road and Custer Road.

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Richardson ISD says the two children were pre-Kindergarten students at Spring Creek Elementary. They were taken to hospital as a precaution because of their age. They were not seriously injured. The bus driver did not need to be transported to the hospital.

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The driver and passenger of the other vehicle were not seriously hurt either.

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Crash investigators will continue to look into the incident to see what caused the crash.