Laine Priestley

Police were at the scene of a fatal stabbing at Dunedin's bus hub within one minute and the victim died from a single stab wound, the city's top cop says.

School pupils say police failed to take "substantive measures" despite being warned about Dunedin bus hub safety before yesterday's suspected stabbing in which a 16-year-old boy died.

Police were at the scene of a fatal stabbing at Dunedin's bus hub within one minute and the victim died from a single stab wound, the city's top cop says.