SAN FRANCISCO — Google Inc.'s Gmail service was knocked offline Tuesday in a severe outage that the company said affected a "majority" of users.
Google said Tuesday afternoon that it fixed the problem.
It wasn't immediately clear what caused the disruption, which led Gmail users to get an "Unable to reach Gmail" message.
Google representatives did not immediately return messages left by The Associated Press.
Google notified users in a posting on the company's Web site that problems with Gmail surfaced Monday, wiping out e-mail to a "small subset" of users. On Tuesday afternoon the company said on its Web site that an outage affecting "a majority of users" had hit Gmail.
Google didn't say whether the outages were related.