Japan's industry ministry has warned Apple's iPod nano may pose a fire hazard and has called on the company to take action.
The ministry has ordered Apple to report on measures it will take to avoid the iPod nano music overheating or catching fire. Officials also want Apple to reveal how many iPods, both in the US and worldwide, have suffered from over heating issues.
"Four people burned themselves after they touched the device, which had overheated during charging," an official from the Economy, Trade and Industry Ministry said.
"The ministry repeatedly asked Apple Japan to take market measures, such as giving warnings or recalling the products, but it has failed to do so."
Japanese authorities claim the 2005 iPod nano model has been responsible for at least 27 incidents, including six fires that required firefighters to be called.
The first generation of iPod nano was introduced in 2005 as a replacement for the iPod mini, available in 2GB and 4GB versions.
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