Japan investigates Apple's 'overheating' iPods

A possible battery fault which caused iPod Nanos to overheat dangerously is being investigated in Japan.

The government ordered an inquiry after reports that two Nanos overheated in Tokyo, scorching nearby paper and woven straw mats.

The report disclosed today by the Ministry of Economy, Trade and Industry follows a similar report in March about sparks shooting out of a Nano.

A government spokesman said they have been working with iPod maker Apple to investigate the cause, and a defect in the lithium-ion battery is suspected in all three.