Police have called on workers not to leave valuables in cars parked at the airport.

Central West Police District crime manager Detective Inspector Bruce Grassick said thieves had broken into vehicles left in the long-term car park.

“We are working to solve the matter with airport management,” he said.

“It is imperative [people] do not leave valuables in their cars, particularly tools,” he said.

Inspector Grassick said it was difficult to tell what time the incidents were occurring as some people were leaving their cars in the car park all week.

However, he said the crimes were happening at night.

Inspector Grassick said anyone with information should contact Orange police or Crime Stoppers on 1800 333 000.

Orange City Council spokesman Nick Redmond said the crime spree had led council to install extra security cameras at the airport this week.

It has also begun night patrols by security guards.

Police and council have reviewed CCTV footage from the area.

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“The number of break-ins to vehicles parked in the long-term parking at Orange airport is concerning and disappointing,” Mr Redmond said.

“Orange City Council is working with police to deter crime in the area. 

“Council is also taking a proactive approach to reducing the number of incidents with the installation of extra CCTV cameras and nightly security patrols.

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“We hope this serves as a warning to people who are carrying out these crimes, you will be caught and you will be charged.

“In the meantime it’s best to make sure all valuables, particularly work tools are not left in vehicles for any length of time if it can be avoided,” he said.