Singer Richard Marx and wife subdue 'crazy' passenger during four-hour battle on flight

Singer Richard Marx and his wife helped take down a violent passenger on board a plane during a four-hour battle that involved tasers and ropes.

Marx and his wife, Daisy Fuentes, were on board a Korean Air flight travelling to Vietnam when they claim a man sitting near them started attacking flight attendants and passengers.

Tasers, ropes and multiple restraint techniques were used to diffuse the situation and temporarily subdue the man who was later arrested by police in Seoul.

TV presenter Ms Fuentes shared photos of their terrifying experience on social media and the pair have slammed the airline for their lack of action and training.

“(Korean Air was) completely ill-equipped to handle potentially deadly situation," Marx tweeted.

"Passenger mentally unhinged attacking crew and passengers on [Flight] 480."

He later posted to Facebook and called the crew "clueless": “My wife and I are safe but one crew member and two passengers were injured.

"The all female crew was clueless and not trained as to how to restrain this psycho and he was only initially subdued when I and a couple other male passengers intervened."

Marx said they landed in Seoul where police boarded the plane and arrested him.

"Heading home to Los Angeles soon but Korean Air should be sanctioned for not knowing how to handle a situation like this without passenger interference," he wrote.

Ms Fuentes's images show a female flight attendant nervously holding a taser as Marx grabbed the man and subdued him using rope.

[[img:https://s.yimg.com/dh/ap/default/161220/marxx3.jpg|caption="Passenger mentally unhinged attacking crew and passengers on [Flight] 480," Marx said. Photo: Twitter|size=O]]

“I feel horrible for the abuse the staff had to endure but no one was prepared for this," she wrote.

"They never fully got control of him.

"They didn’t know how to use the taser and they didn’t know how to secure the rope around him (he got loose from their rope restraints three times)."

Two passengers and a crew member were injured during the breakdown.

The pair then caught a connecting flight to Los Angeles from Soeul and said they would post a video of the man after their next flight.