Apple has issued a statement recalling some 1st-generation iPod Nanos.
Owners of the affected devices are advised to stop using them and submit a claim for a free replacement.
Affected devices were sold between September 2005 and December 2006.
The issue, which is blamed on a specific batch of faulty batteries, could cause the battery to overheat.
You can submit an online claim for using your iPod's serial number on Apple's Support website.