A serial thief is believed to be responsible for a spike in thefts from vehicles in the Bay of Plenty.
Police are warning people never to leave items unattended in vehicles at popular walks and reserves around the Western Bay of Plenty.
Sergeant Tristan Murray said Papamoa police noticed the spike in thefts from vehicles, particularly at the Kaiate Falls Carpark in Welcome Bay and the Otawa Trig Carpark near Te Puke.
In the past 10 days, there have been six vehicles broken into and items stolen, he said.