Milford ? A fisherman found a heavy machine gun on the ice of a creek near Fort Riley, and Geary County sheriff’s deputies later found two more.

The three Browning .50-caliber guns were all in working condition, Sheriff’s Lt. Sandy Popovich said, but none was loaded.

Sheriff Jim Jensen said he did not know how the guns got there, and the Army’s Criminal Investigation Division is looking into the matter.

The U.S. Army Corps of Engineers owns the land, Jensen said, and soldiers from Fort Riley have used it for training. All three guns were found in an area accessible to the public.

The guns were turned over to the Army.

Popovich said the fisherman found the first machine gun about 9 a.m. Wednesday at Madison Creek, about two miles north of Milford. He gave it to the Geary County Sheriff’s Department, which searched the area and found a second gun under the ice and the third in the grass on the creek’s bank.

Jeff Coverdale, a Fort Riley spokesman, said no missing weapons had been reported to his office.