A "small subset of users" hasn't been able to get into their e-mail accounts.
Without elaborating, Google says the e-mail trouble might be affecting other services as well.
The technical problems at Google are preventing an unknown number of people from using its Internet search engine, e-mail and other services.
Multiple messages posted on Twitter, a popular information-sharing forum, indicate that people all over the world are having trouble with the Google search engine and e-mail. But other Twitter users say their Google services have been running smoothly.
Google says the company is working to fix the problems.