Emergency personnel responded about 7:10 p.m. Saturday to a two-vehicle injury crash on I-255 southbound near milepost 16 north of Dupo in St. Clair County.

One vehicle came to rest in the median while the other was stalled in a lane of traffic.

The vehicles involved were a white Mazda and red Chevrolet Impala, Illinois State Police said.

One person was transported to a local hospital for treatment of unspecified injuries.

I-255 was shut down and reopened at approximately 8:05 p.m., police said.