Information sought about Tas pub violence

A series of allegedly unprovoked attacks at a northeast Tasmanian pub which left 13 people injured and several unconscious, has prompted a call by police for public assistance.

At about 1.30am (AEDT) on Saturday a number of offenders were captured on CCTV, launching attacks on patrons who suffered a variety of injuries including bruising, swelling, cuts and a broken nose.

Two Launceston men aged in their 20s are already in custody and detectives are hoping to get more public information about the incident.