A Class Shocked by Exploded iPod

Students of Pentucket Regional High School in Massachusetts, United States were crowd when an iPod explode in their class.
When they was sitting in science class, they did not think would be an unpleasant surprise. The favorite music player of one student there, suddenly exploded.
As a result, the class was shocked and ran scattered. Firefighters were called to extinguish the fire immediately that extends the classroom. Lucky, no one was hurt in the incident.
Actually that was not the first Apple's music player explosion case. Previously, the iPod's of a teenager in Ohio is also exploding, and even resulted in the victim's legs burned.
So far, such as quotes from AfterDwan, Monday (1/3/2010), the company Steve Jobs has not admitted the existence of vulnerability in the famous music player.
But according to the Consumer Product Safety Commission, the cause of these explosions could be caused by factors lithium battery that is not Apple's hardware output.