Some users of Apple's MobileMe service are reporting problems accessing their emails this morning.
MobileMe users have reported problems accessing the service both via the web and IMAP, though other MobileMe accounts seem to have been unaffected.
Users of the service flooded Twitter with reports of their problems. "According to my iphone, #mobileme went down at about 3:10AM GMT. So it's been down for 7 hours plus," one wrote.
However, Apple has not given any details of the nature of the problem or responded to Macworld's request for comment. There is no mention of any outage on Apple's MobileMe Support page.
There is scheduled maintenance due to take place on 28 June at 22:00-22:30 PDT, which is early morning of the 29 June in the UK.
MobileMe is not long for this world anyway - many of its functions will be replicated in iCloud. Existing users will be able to use MobileMe for another year, though you can't sign up for a new account.
Macworld will bring you more information as we receive it.