The grandparents of a missing four-year-old boy say they are "absolutely devastated" after a family member was declared a suspect in his likely death.

A driver took out a 100m section of median barrier on the Southern Motorway before allegedly absconding from an early morning crash, Dunedin police say.

Young visitors from Invercargill Earl Xander Marial, 9, and his brother, Earl Sky Marial, 5, take in the colourful plantings at the Dunedin Railway Station yesterday. 

The future of Dunedin’s festival schedule is the past as a celebration of the city’s heritage is put into the works.