"To date, there are no confirmed battery overheating incidents for iPhone 3GS and the number of reports we are investigating is in the single digits," Apple said in a statement.
After conducting its own internal investigation, the Cupertino, Calif.-based company said that there were no underlying flaws with the device and the cracked screens were a result of "an external force that was applied to the iPhone."
Earlier this week, half a dozen claims of exploding iPhones have come out of France, as officials launched investigations into the possible risks of the popular smartphones.
Consumers in the U.K., Holland and Sweden had reported similar problems.
France's top trade official declined to comment on a meeting he had with Apple's French financial director over the consumer protection agency investigation.
The European Commission also issued a warning using its rapid-alert system -- informing its 27 member states of the potential iPhone dangers.
Apple has sold over 26 million iPhones since it first debuted two years ago.
