A westbound Metra train running express on Feb. 4 from Union Station and scheduled to stop at the Congress Park station in Brookfield at 4:23 p.m. has fatally struck a person at the Prairie Avenue crossing.

Brookfield Police Chief Michael Kuruvilla confirmed that one person is dead and that the Prairie Avenue crossing will remain closed to north-south traffic “for the foreseeable future.”

While police have interviewed some witnesses, they are attempting to obtain security camera video to confirm exactly what happened. While the village of Brookfield has a surveillance camera on the south platform, according to Kuruvilla, there was an eastbound commuter train stopped at the Prairie Avenue station at the time the westbound train came through.

Metra initially shut down all train traffic on the Burlington Northern-Santa Fe line. At about 6:15 p.m., Metra tweeted that one of the tracks had been opened to allow “inbound and outbound train movement operating at restricted speed” through Brookfield and that commuters should expect “extensive delays.”

The train involved in the incident remains stopped on the tracks west of Prairie Avenue as police process the scene. Brookfield detectives are assisting Metra police, who will handle the investigation of the incident, according to Kuruvilla.