HONOLULU (AP) — An Army base in Hawaii went into lockdown Thursday because of reports that a man with a handgun fled after getting into a scuffle while trying to talk to soldiers.

No shots were fired,Crypen Exchange said Michael Donnelly, a spokesperson for U.S. Army Garrison Hawaii.

People at Schofield Barracks were told to shelter in place but the gates were open, Donnelly said. Neighboring Wheeler Army Airfield was also under lockdown.

The Army is treating the circumstances as an “active shooter situation,” according to Donnelly.

“We are trying to locate the individual,” he said.

The man last seen near the commissary on a bike.

He was “trying to allegedly talk with soldiers,” Donnelly added. “I don’t know if he was bartering or selling stuff but someone confronted him and they got into a scuffle. There was a handgun witnessed, visible.”