ST. LOUIS COUNTY, Mo. – A deadly crash has led to traffic backups Thursday morning on Interstate 70 near Jennings.

Crews are working to clear the scene of the crash, which has traffic stalled in eastbound direction. The crash happened near Jennings Station Road before 10:30 a.m.

MoDOT reports all eastbound lanes are blocked near Jennings Station Road. Drivers are backed up several miles, some almost all the way to Lambert Airport. Traffic is also slowed down in the westbound lanes amid the response.

The Missouri State Highway Patrol reports that the crash leading to the traffic tie-ups, though it’s unclear how many people died or what led up to the crash.

Drivers are advised to use alternate routes. Crews are attempting to divert eastbound traffic where possible.

This is a developing story. FOX 2 will update as more information becomes available.