Microblogging site Twitter reportedly went down for about 45 minutes, affecting many users on both web and mobile version.
The 140-character site posted a statement on its blog noting the cause and timing of the outage, saying that the service was unavailable for many users starting 11.01a.m, but was fully recovered by 11.47a.m.
According to Cnet, the company revealed that the outage was due to an unexpected complication experienced during a planned deploy in one of their core services.
This had been Twitter's longest outage since its uber-hot 2013 IPO.
The report said that in its IPO paperwork, Twitter acknowledged its history of outages dating back to the 'fail whale' days, but the service has since improved its stability as its user base and tweet volume has soared.