Thousands of dollars have been stolen from parking machines in central Auckland, police say.
At least 40 pay and display machines have been badly damaged in the thefts, costing an average $2000 each to repair.
The attacks have taken place on streets and in car parks in the CBD and inner suburbs, including Parnell and Remuera.
"The machines are owned and operated by Auckland Transport and, in terms of costs for repairs, the offending is taking a toll on the pockets of Auckland ratepayers," Inspector Vaughn Graham said.
Mr Graham said police believe the thieves are well-organised and could be posing as servicemen because some thefts happened during the day.