Secondary school teachers are striking next week after the government’s latest pay offer was rejected as "a waste of time", an Otago union representative says.

An embattled student representative is hoping to remain in his role after receiving a formal letter to resign from the Otago University Students’ Association (OUSA) executive.

Some "very rare" pieces of Otago sporting history from one of the region’s most prominent sportsmen will go under the hammer at an auction next week.

Police are investigating an alleged assault at a Dunedin secondary school which has left a mother fearful for her son’s safety.