Twitter has urged users to log out of their TweetDeck service after it was hit by a bug which caused a random surge of retweets across a large number of accounts.
They tweeted the statements below.
A security issue that affected TweetDeck this morning has been fixed. Please log out of TweetDeck and log back in to fully apply the fix.
We've temporarily taken TweetDeck services down to assess today's earlier security issue. We'll update when services are back up.