CLAREMONT, N.H. (AP) — A boy who became pinned under feed from a farm silo in Claremont is hospitalized in critical condition.

Authorities say 12-year-old Andrew Wheeler of Claremont suffered life-threatening injuries Tuesday afternoon at the MacGlaflin Farm.

Claremont Police Chief Alex Scott told the Union Leader that Wheeler was at the dairy farm with a relative who worked there when the accident happened.

Scott says Wheeler was seen riding his bicycle near the silage crib, a cement building packed with feed, before the accident but authorities don't know if he rode into the building before the feed fell on top of him.

Adults at the farm were able to free him and perform CPR before rescue crews arrived.

He is being treated at Dartmouth-Hitchcock Medical Center.

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Copyright 2010 The Associated Press.