Apple has admitted that "a few bugs" in its latest mobile operating system iOS 5 are affecting the battery life of some of its devices.
It said that it will release a fix in the next few weeks.
The issue came to light over recent weeks with thousands complaining on Apple's forums about poor battery life.
In some cases, people claimed that their phone battery was draining by up to 15% every hour, even when the handset was not being used.
Initially Apple would not comment on the matter but late last night it issued a statement: "A small number of customers have reported lower than expected battery life on iOS 5 devices," it said.
