A glitch on Apple's iPhone has stopped its built-in alarm clock going off, leaving many people oversleeping on the first two days of the New Year.

Angry bloggers and tweeters complained that they had been late for work, and were risking missing planes and trains.

Apple has acknowledged the problem and says it will be fixed by 3 January.

The reason has not been given but the glitch appears to affect single alarm settings on the iPhone 4 and earlier models with software updates. Greg Wood reports.

Full story: BBC News