Four teenage boys have been charged over a disturbance and serious assault in Glenorchy on Tuesday in which a 33-year-old man sustained injuries.

Detectives from Glenorchy Criminal Investigation Branch, supported by Taskforce Respect officers, have responded quickly to the incident which involved a group of people and happened about 3.30pm in the Northgate shopping precinct.

The four male youths from southern Tasmania – two aged 14 and two aged 15 – were arrested today and jointly charged with Criminal Code Assault and bailed with conditions.

The man was treated at the scene by Ambulance Tasmania on Tuesday and taken to the Royal Hobart Hospital where he is receiving treatment for head injuries and is in a serious but stable condition.

Police investigations are continuing.

Inquiries regarding the alleged offenders and analysis of video and CCTV has been conducted.

Police would like to hear from anyone who may have witnessed the incident or has any information which can assist in identifying those involved.

Further, if anyone has video footage from the Northgate and Main Road, Glenorchy area around the time of the disturbance, they can contact police on 131 444 or report anonymously to Crime Stoppers on 1800 333 000 or www.crimestopperstas.com.au