Facebook has been hit by a strange outage for the second day in a row.
Users reported being locked out of their accounts or that they were unable to get on the service.
It comes almost exactly a day after another, similar problem at around the same time.
As with the new outage, many users reported that the site continued to work fine.
Numerous people affected by the outage rushed to rival social network Twitter to complain that the site had stopped working.
The site would show an error message or fail to let them log in, affected users said.
Just as with the previous day's problems, the issues appeared focus on the east coast of the US, according to the tracking website Down Detector.
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