Trainer Brian McIntrye was arrested Sunday for allegedly having a gun in checked baggage before boarding a plane at Manchester Airport in England, according to multiple reports.

“BoMac” was in the corner for Chris Eubank’s knockout victory over Liam Smith the night before at AO Arena in Manchester.

“Brian McIntyre, from the United States of America, was charged with possession of a firearm and possession of ammunition for a firearm without a certificate,” Greater Manchester Police said in a statement.

McIntyre, who is in police custody, appeared at Stockport Magistrates’ Court on Monday. He is due in Manchester Crown Court on Oct. 9.