The car was driven through a security screen at the Spark store.

Ram raiders stole a number of cellphones after smashing through the doors of a Spark store in Ponsonby, Auckland.

Police were called to the scene on the ground floor of the Cider Building on Williamson Ave about 4.10am on Wednesday.

The thieves used a stolen Subaru Forrester to storm through the doors and enter the store.

ZAR LILLEY/FAIRFAX NZ The car, a Subaru Forrester, was driven through the doors of a Countdown store and through a security screen about 4am Wednesday, police said.

The stolen vehicle was abandoned at the scene and the thieves fled in another car which was waiting outside.

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Staff at the adjoining Countdown supermarket raised the alarm with police, an officer at the scene said.

ZAR LILLEY/FAIRFAX NZ The ram-raiders then escaped in another car which was waiting outside, abandoning the Subaru.

It did not appear that anyone was injured in the incident, the spokeswoman said.

The abandoned Forrester was towed from the scene.

It is the second ram raid of the store in the past few months.

Spark said all the stolen phones had been blacklisted after the theft and would not work on any New Zealand mobile network.

Grant McBeath, general manager of sales for Spark Home, Mobile and Business, said the theft was "really pointless".

"As all the devices have now been blacklisted, they might as well have stolen some paper weights, as that's all they're good for now.

"To be honest, they won't even make good paper weights as our devices are so light these days."

McBeath said people should be careful when buying secondhand phones, and could check whether a phone had been blacklisted by checking its unique IMEI number on the Telecommunications Forum's website.

The Ponsonby store was re-opened for business at 11.30am, he said.