State Police were investigating injuries suffered when a tractor-trailer overturned onto an SUV about 8 p.m. Wednesday on the exit ramp from the eastbound Thruway in Cheektowaga to the Niagara Section of the Thruway leading into Downtown Buffalo.

The Thruway Authority said all lanes of the exit ramp were blocked by the accident.

There was no immediate word on the extent of the injuries nor on the cause of the crash.