This is the shocking moment a passenger headbutted an air steward on a flight out of Dubai.

The man was reportedly drunk when he became violent in the business class section of the Emirates jet from the UAE to Islamabad, Pakistan, on Sunday night.

Cabin crew onboard flight EK614 tried to restrain the rowdy passenger. But the video shows how he headbutted one of the male crew before being pinned down and restrained.

An air hostess then ran over with a pair of emergency black cable ties - kept onboard for handling unruly passengers - to cuff him.

The man is said to have been restrained in the seat until the Boeing 777 landed at around 1:20 am local time on February 26. Pakistani airport police then boarded to arrest him.

Fellow passengers said they were 'terrified' by the rampage and avoided walking past the flier amid fears he could attack them.

One said: 'The drunk guy was extremely violent. He was restrained and handcuffed by Emirates cabin crew but I think Pakistan authorities let him go as he was well connected.'

Alcohol is banned in Pakistan for Muslim residents, leading to many binge drinking when they visit more liberal neighbouring countries.

The UAE is a relatively strict Islamic country but has become more tolerant in recent years amid its rise as a travel destination and aviation hub.

Drinks are available inside the departure lounge at the Dubai International Airport and in bars and restaurants throughout the city.