Apple says some services down, including App, iTunes stores Wednesday
"Customers may be unable to make purchases from the App Store, iTunes Store, iBooks Store, or Mac App Store," the company said on its website.
Apple said its iCloud Mail and iCloud Account & Sign In were affected until about 8 a.m., but had been restored.
The other services were disrupted at about 4 a.m. and were still unavailable as of 9:55 a.m.
Blooomberg, which first reported the outage, said users in several countries, including the United States, Switzerland, Hong Kong and U.K. were affected.