At least one person was seriously injured in an explosion Wednesday afternoon at Northeast Agricultural Sales Inc. at 26 North Road in Detroit.

A woman who answered the phone there just after 2 p.m. said she thought two people were injured, at least one seriously. She said she had no further information on the explosion, which happened between 1 p.m. and 1:30 p.m.

A state police official said at the scene that one person was taken by LifeFlight helicopter to Maine Medical Center in Portland.

Steve McCausland, spokesman for the state Department of Public Safety, said in an email at 2:17 p.m. that investigators from the state Fire Marshal’s Office were en route to the scene.

The explosion occurred in back of the building, and media were unable to access that area.

Those responding to the scene included Detroit, Pittsfield, Newport, Corinna and Skowhegan firefighters, Somerset County Sheriff’s Office, state police, Plymouth Rescue and Sebasticook Valley Health ambulance and state Department of Environmental Protection.

Emergency officials were responding to the explosion just before 2 p.m. Wednesday. A dispatcher at Somerset County Communications Center in Skowhegan said at 1:50 p.m. that fire units were at the scene.

Northeast Agricultural Sales, which sells farm equipment, is off Route 100 in Detroit, a small town in Somerset County.

No other information was immediately available.

This story will be updated

Amy Calder — 861-9247

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Twitter: @AmyCalder17