FOSSTON, Minn. (AP) — Authorities have arrested a man suspected of shooting a U.S. Customs and Border Protection helicopter in northern Minnesota.

Clearwater County sheriff's officials say a Polk County deputy was injured, either by a gunshot or by flying glass when one of the helicopter's windows shattered Monday. The deputy was taken to a hospital in Fosston for treatment.

The Star Tribune reports authorities say the pilot was flying over an area of suspected drug activity when the chopper was hit twice by gunfire from a high-powered rifle. The pilot wasn't injured.

Sheriff's deputies searched the area where the shots were fired and arrested a 71-year-old man they found hiding in some woods near a cabin.