Apple said it will replace power adapters sold with its popular iPhone 3G device due to a risk the prongs will snap and cause people to be jolted by electricity.

Apple iPhone 3G More Photos View Specs

The part the Cupertino-based company is offering to replace is an "Ultracompact USB power adapter" reportedly included with iPhone 3G models sold in Japan, Canada, Mexico, the United States and a half dozen South American countries.

"We have received reports of detached blades involving a very small percentage of the adapters sold, but no injuries have been reported," Apple said on a webpage.

Apple advised iPhone 3G owners to charge their phones by plugging them into computers or with a standard-sized Apple power adapter until the potentially problematic part is replaced.

"Customer safety is always Apple's top priority, and therefore we have voluntarily decided to exchange every Ultracompact power adapter for a new, redesigned adapter, free of charge," said Apple.

Instructions for replacing Apple adapters were posted at www.apple.com/support/usbadapter/exchangeprogram/ .

- Apple iPhone 3G Specs

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