Police are appealing for witnesses to come forward after a man was assaulted at an organised family event in Warton.
The offence happened around 9.30pm on Saturday, August 4 at `Playfest` on Sandes Lane when the 25-year-old victim, was stood waiting in the queue for the toilet.
A man allegedly punched the victim, who is from Lancaster, in the head causing him to fall to the floor where he was punched several times.
The victim was treated at the scene for a broken nose and fractured rib and the offender was escorted from the area by on-site security.
DC Ian Wright from Lancaster CID said: “There were 1,000 people in attendance at the event and around 20 people that may have witnessed the assault.”
Contact police on 101 or Crimestoppers on 0800 555 111.