Twitter was bitten by a bug that caused users of the fast-growing micro-blogging service to temporarily lose the list of followers of their accounts.

"We identified and resolved a bug that permitted a user to 'force' other users to follow them," Twitter said.

"We're now working to roll back all abuse of the bug that took place," the San Francisco-based start-up said in a blog post.

Earlier Monday, popular technology blog Gizmodo published details about the bug explaining to Twitter users how they could force any other user to follow their account.

"Follow this dead-simple guide to force any Twitter user - from Oprah (Winfrey) to (Ashton) Kutcher - to follow you. No, seriously," said Gizmodo.com, which was also in the news last month after it obtained and published details about the latest iPhone prototype from Apple.

Talk show host Ms Winfrey has 3.5 million followers and follows 426 people while Hollywood star Mr Kutcher has 4.8 million followers and follows 732 people.

Twitter's efforts to close the hole briefly left a number of users - including Mr Kutcher - with zero followers although the delivery of messages did not appear to have been affected.

The Twitter account of technology blog TechCrunch.com, for example, went from 1.4 million followers to zero.

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