Twitter has blamed an internal error for an outage on Tuesday that lasted over six hours and left users unable to access the mobile or desktop version of the site.
A note on the firm's status page said that the problem was introduced during a code change, but that this has now been reverted to fix the problem.
"The intermittent issue affecting some users between 00:40 to 06:50 PST has now been resolved. The issue was related to an internal code change. We reverted the change, which fixed the issue."
The outage began on Tuesday morning UK time, leaving users unable to use the social service on desktop and mobile apps for some time.
The firm’s status page at the time confirmed a problem, which was the third such fault to hit the site in just five days. The first outage took place on Friday, and there was another glitch on Monday evening UK time.
The problem affected users across the world as comments on the Downdetector website show downtime across Europe, the US and Asia. Many people took to Reddit to discuss the situation.
The outage on Tuesday morning appears to be more serious than the previous incidents as it has affected the site for at least 50 minutes, compared with just 10 minutes on the previous occasions.
Twitter has not given any insight on the previous incidents so it is hard to tell whether they are related.
The outage is not good news for the site as it struggles to reestablish itself as a key site for advertisers against rivals such as Facebook. A website failure that will mean ads are not displayed to potentially millions of eyeballs will not look good to any potential advertisers.
Infected apps have been downloaded more than 50 million times
Customers of regular price-raising ISP and cable operator claim nationwide outages started on Monday
Pixel 2 smartphones and a Pixel-branded laptop also planned by Google
The moment you've all been waiting for...