Twitter users are reporting that numerous tweets have begun to disappear, including the most retweeted picture of all time: Ellen DeGeneres' Oscars selfie.
Users of the popular microblogging service began tweeting the disappearance of various tweets Tuesday afternoon.
Twitter issued a statement saying that it has begun looking into what is causing some tweets to not display properly.
The DeGeneres selfie, which previously could be found here, broke the record for most retweets after being posted by the entertainer during the 86th Academy Awards this month. The tweet racked up several million retweets.
[Updated, 9:54 a.m. PDT March 26: DeGeneres' selfie has been restored. The picture has been retweeted more than 3.4 million times and favorited nearly 2 million times.]
As tends to happen when Twitter or other online services suffer a problem, users took to the service to voice concern and, more importantly, crack jokes.