As cameras rolled on the fishing vessel Northwestern during a shoot for Discovery Channel’s “Deadliest Catch,” Captain Sig Hansen fell unconscious on the ship’s deck, TMZ.com reports.

“We’re told Sig brushed it off when he came to, and wanted to keep fishing,” TMZ reports. “The production crew insisted he get medical attention, and he was airlifted to a nearby hospital.”

Reps for Hansen later confirmed that he suffered a heart attack, the website reports. He was reportedly resting up in the hospital.