PONTOON BEACH, Mo. – A police chase beginning in Missouri crosses into Illinois before ending in a serious crash.

County police say that the incident all began a little after midnight in the Jennings area of north St. Louis County.

The incident started when an officer from the City of Jennings Precinct attempted to stop a Mercedes SUV speeding in the area of Goodfellow Avenue and Veronica Avenue.

Police claim the driver of the Mercedes refused to stop and instead made a U-turn, driving straight towards the officer.

The officer was able to avoid the collision with the Mercedes and began a pursuit of the SUV.

The pursuit continued over into Illinois before ending in Pontoon Beach when the vehicle that police were chasing appeared to have crashed at Route 111, south of Interstate-270.

At this point, it appears that St. Louis County police were the only law officers involved in the chase.

County police say no officers were hurt in the chase, but at least one person was taken to the hospital by ambulance, likely from the Mercedes that police were chasing.

Accident reconstruction by Illinois state police may have been called in as well.

This is a developing story. More information will be provided as it comes into the FOX 2 newsroom.