Twitter crashed suddenly for most of their online and app users on the 28th January 2014 around 9:20pm (UK Time).
[10:05pm]: Twitter is fully working again showing no signs of its crash earlier this evening. Twitter has yet to comment what happened and why.
[9:43pm]: Users are able to login and out successfully again, some users are still reporting that they are unable to load timelines.
[9:38pm]: Users are now able to access Twitter.com but there seems to be a problem refreshing timelines.
[9:30pm]: Users are experiencing an error message when tweeting or refreshing their timelines.
We will continue to update this post when we receive more news.