A man has been taken to hospital with slash and puncture wounds after a brawl in which a samurai sword was used.
The fight took place late on Sunday night in a clearing near Shipley Lane, Shipley, in Derbyshire.
It involved about eight men, some of whom had weapons including what is believed to be a samurai sword.
A 19-year-old man was taken to Ilkeston Hospital with a slash wound to his arm, and a puncture wound to his body. Five men were arrested.
The men have been interviewed and are currently on police bail. Officers have appealed for further witnesses.