[Photo credit: St. Peter Herald]

WASECA, Minn. (AP) – An ammonia leak at the Birds Eye Foods plant in Waseca caused employees to evacuate.

Fire Chief Gary Conrath says the source of the leak Wednesday evening was a gasket on some equipment in the compressor room. Employees were later allowed to return to the building after it was ventilated.

Faribault Daily News (http://bit.ly/HmC6r5 ) says no one required medical attention.

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Information from: Faribault Daily News, http://www.faribault.com

(Copyright 2012 by The Associated Press. All Rights Reserved.)