The phones are likely exploding due to a phone being dropped causing internal problems, or a third party charger causing the phones to overheat and then eventually catch fire. These were also thought to be the issues of the Note 7 at first. While Apple may not think this is an issue the Shanghai Consumer Council is getting involved. It should be noted that the majority of these issues are coming from the iPhone 6 which is now a two year old device. As cell phone batteries age they tend to expand. I have had several older batteries expand to the point of no longer being able to use my phone. Maybe this is just an age issue.
via BBC
