Three men have been arrested after police attended a disturbance on Harold Street in Grimsby, with reports of a group fighting on the street with weapons.
An 18-year-old man has was arrested on suspicion of assault following the incident on Wednesday, July 5.
Two men, aged 19 and 59, were arrested on suspicion of affray.
All three have been released under investigation.
Anyone with information should call Humberside Police on 101, quoting investigation number 16/18416/17.
Alternatively, contact the independent charity Crimestoppers anonymously on 0800 555 111.