Twitter is down for hundreds of thousands of frustrated users who have reported issues with the social media platform.
Website crash detection site DownDetector reported the mass outages begun to spike at 9.47pm.
The problem is not just hitting the UK, with worldwide access issues being reported.
Some users have been logged out of their accounts while some are unable to tweet at all.
Many are being met by messages saying they are over their daily limit, suggesting that Twitter is over capacity.
Others just say direct messages are not working with thousands unable to refresh their feeds.
In England, the areas who are reporting the problems the most are London and Manchester.
Scotland's issues are being mainly reported in Glasgow and Edinburgh.
Some 56% of the problems were reported on the website, with 37% saying there are issues with the app.
A further 3% of problems were linked to Twitter's login.
Many twitter users still appear able to tweet, suggesting the problem may be a geographical.
One person posted: "I've noticed all the BLUE and GOLD verified Tweeters can still post. Funny that!!"
Downdetector only reports an incident when the number of problem reports is significantly higher than the typical volume for that time of day.
Earlier, twitter has been blocked on a number of networks across Turkey in the wake of the deadly earthquakes that have killed more than 9,500 people.
Twin earthquakes — the first a magnitude 7.8 and the second a 7.5 — hit Turkey and neighbouring Syria, on Monday.
Tens of thousands of people are injured and missing and the there are still daily tremors causing thousands of families' homes to crumble.
Internet-monitoring group NetBlocks said on Wednesday that Twitter had been blocked on several networks across Turkey, with the filtering having been applied on major internet providers.
The incident comes as authorities raise concerns over disinformation online, although no formal explanation has been provided.
Alp Toker, the director of NetBlocks, said the coordinated nature of the restriction indicated that it was likely the result of a government order.
