Six members of the Barbarian Mongrel Mob gang charged over assaults at Opotiki bar on New Year's Eve

Six members of the Barbarian Mongrel Mob have been arrested over a series of assaults at a bar in Opotiki on New Year's Eve.

Police say the most serious of these assaults, which took place at Slims Bar, was when four of the gang members set upon a 48-year-old man who was punched to the ground before being bottled by two members and kicked and punched by others.

A second male was assaulted outside the bar, where he was allegedly king hit from behind by two members of the gang.

When a female staff member tried to intervene she was also punched in the head by one of the alleged offenders.

One of the gang members has been remanded in custody while the rest will appear in Opotiki District Court on various assault charges on Thursday.

A Mongrel Mob patch