Anyone with information should call West Yorkshire Police on 101.
A man has suffered a broken leg in a violent attack in Halifax.
The 41-year-old was assaulted at the Yates on Silver Street at 12.30am on Sunday.
A 28-year-old man was arrested and has been released while investigations continue.
A West Yorkshire Police spokesperson said: "Detectives would like to hear from anyone who witnessed the assault or anyone who has any information to contact Calderdale CID.
"Anyone with information should call 101."