Emergency workers respond to mock airline crisis

KSDK -- Ambulances, fire trucks and dozens of emergency workers converged on St. Louis Downtown Airport today, but it was just a drill. 

Click here to see photos of the drill

The Cahokia, Illinois airport conducted the drill to test the ability of area emergency responders to coordinate efforts during a crisis.

In the drill, an airline belonging to an imaginary airline is forced to make an emergency landing.

35 passengers are on board and the plane bursts into flames as it lands.

Emergency workers freed the passengers and put out the fire. The exercise is required by the Federal Aviation Administration.