Organisers of a Hawke's Bay cycling event have had to pull pin because someone's been scattering spikes and other sharp objects on the path it uses.
Cyclocross - which is like cross country cycling - takes place every second Wednesday in Hawke's Bay, but for the last two weeks, organisers have found thumbtacks, suspended barbed fish hooks and trenches dug across the tracks.
Now it's had to can plans for a big event next month. Ivar Hopman is the event organiser. He talks to Lisa Owen.