Two adult drivers and two students have been transported to hospitals for minor injuries or as a precaution after a four-vehicle crash on Route 185 in Simsbury, according to police.
Police said one car rolled over, an oil company van went into a guardrail and a blue minivan went down an embankment and into the woods.
Officials said 17 Open Choice students from Hartford were on the CREC bus when it crashed as it entered Simsbury.
A school nurse checked out the students, who attend both Central and Squadron Line, and two students were sent as a precaution to a local emergency room.
The crash happened on Route 185, by Cobtail Way. The road was closed and there were heavy delays in the area, but the road has reopened.
The rest of the students will be brought to school once the bus is cleared to proceed.
A statement from the schools said staff will support students who might have gotten a scare from this incident.