Tweets were not showing up on feeds or even loading for some users on Saturday, according to hundreds of people reporting problems with the social network.
Twitter reported a problem on its status page at 3am but later said the issue had been “identified”.
“Between 18:49 and 19:23 PDT (2.49am and 3.23am) today, some users may have experienced issues viewing and sending Tweets on twitter.com and Twitter’s mobile apps,” a spokesperson said.
“The source of this issue has been identified, and we apologise for any inconvenience.”
But the problems seemed to continue into Saturday morning, with hundreds of users around the world venting their frustration.
Feminist campaigner Caroline Criado-Perez wrote: “Twitter is boring when it’s broken”, while another annoyed user suggested people “sit in separate rooms and pass each other notes under the door” instead.
Many people reported feeds missing tweets that appeared to have been posted and profiles not showing any recent posts.
The issues were reported in countries including the UK, US, Germany, France, Poland, Spain and Turkey.
Shortly after 1.45pm, Twitter said the problem had been solved.
"The delay with tweets showing up in timelines has now been resolved," a spokesperson said. "Thank you for your patience."
Meanwhile, there were also reports of a problem with the link shortening service bit.ly.
A warning was being displayed when trying to enter the site suggesting it had been hacked.
It read: "Attackers currently on bit.ly might attempt to install dangerous programs on your computer that steal or delete your information (for example, photos, passwords, messages and credit cards)."
Lots of tweets are not showing up on my timeline still and it is weird.— Renata (@itsrenatak) October 25, 2014
My time line is missing Tweets - I know people have posted but they're not showing up. Is there a known issue?— Yorkie (@KnightofNorbury) October 25, 2014
Come on Twitter play nicely why are you not showing me up to date tweets don't want to see yesterday's tweets thank you.— Lynn+Ben Roe (@Lynn_BenRoe1) October 25, 2014
Oh Twitter. You've broken again. And you were just starting to work :(— Caroline CriadoPerez (@CCriadoPerez) October 25, 2014
911 what's your emergency? Yes twitter is broken could you send someone to fix it please— Ricky Dillon (@RickyPDillon) October 25, 2014