A freight train derailed in a Chicago suburb on Thursday and sparked evacuations of nearby homes and businesses.

The train derailed at 217th Street and Main in Matteson, NBC Chicago reported. A mandatory evacuation was underway amid a suspected leak from the derailed cars.

The evacuation affects people and businesses within a quarter-mile east, one mile west and one mile south of the site, according to the news station.

Canadian National Railway said in a statement to NBC News that the…