TULSA, OK (KTRK) -- Tulsa public Schools released dramatic video of a school bus hydroplaning, driving down a hill and flipping on its side.



There were ten students on board at the time of the crash. Some of them can be heard screaming as the bus went forward and over the edge of the road. Four of the children and the driver were taken to the hospital.



The district is in the process of reviewing the video. Officials say preliminary investigations show that the crash may have been caused by another driver cutting off the bus.