Authorities in northeast Kansas are investigating after a man reported being hit in the head and robbed at gunpoint.

Atchison County Sheriff, Jack Laurie said deputies responded around 4 a.m. Monday to the area near 258th and Sherman Road in Atchison, Kan. on a report of an aggravated robbery. A 28-year-old Oak Grove, Mo. man reported he was robbed by two men after going to an ATM and withdrawing money.

“The victim claimed that he was struck in the back of the head with a shotgun and that the suspect(s) fired two shots from the shotgun over the victim’s head, “Laurie said.

Laurie said they do have suspect(s) in the case but that the case is still under investigation.