AN arm-wrestling competition in Huddersfield ended in violence.
The event at Huddersfield Sports Centre on Sunday attracted more than 1,500 Asian people from across the country.
It was organised by a Bradford man and ran from 11am to 10.45pm.
But as the event finished a gang attacked four men near the toilets in the main foyer of the centre on Southgate.
One was hit on the head with a metal pole and the other three were punched.
The man who was struck with the pole, a 39-year-old from Birmingham, suffered a head injury. The other three victims suffered cuts and bruises.
Police have appealed for witnesses to the attack, which is believed to have been carried out by five young Asian men.
A spokeswoman for Kirklees Active Leisure said: "The competition was a pre-booked event, involving male contestants from across the country.
"Organised events at the sports centre need to provide adequate security, which in this instance was a private security firm.
"Extra staff from the sports centre were brought in to supplement the security.
"The duty manager alerted the police immediately after the assault. First aid was given to the injured man before he was attended to by paramedics and police.
"Kirklees Active Leisure are carrying out a full investigation into the incident and are co-operating fully with the police in this matter."
Anyone with information should phone Det Con Dave Poole at Huddersfield CID on 01484 436610.