COLUMBIA, Ill. (AP) — Authorities say four people have been injured in a small plane crash in southwestern Illinois.

Columbia Assistant Police Chief Jason Donjon says two adult males, an adult female and a boy were aboard the single-engine Piper when it crashed about 12:30 p.m. in the city about 10 miles south of St. Louis.

Firefighters had to cut off the top of the plane's cockpit to get to the occupants. Their names were not immediately released.

The injuries were not considered life-threatening.

The Belleville News-Democrat reports the pilot apparently was trying to land or take off from the nearby Sackman Field airport when it hit a power line.

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Information from: Belleville News-Democrat, http://www.bnd.com