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Twitter founder Dorsey to be CEO?

Twitter may be about to end its three-month search for a new CEO where it started: with once-ousted co-founder Jack Dorsey running the short-messaging service.

Dorsey will soon be named Twitter's permanent CEO, possibly as early as Thursday US time, according to the technology news site Re/Code. The report cited unnamed people.

Twitter declined to comment.

Dorsey took over as Twitter's interim CEO in July, replacing former stand-up comedian and veteran entrepreneur Dick Costolo. The change in command came amid slowing user growth that exacerbated investor concerns about the Twitter's ability to become more accessible to a wider audience.

Twitter has more than 300 million users, far behind the 1.5 billion people hooked on Facebook's online social network. Even Facebook's photo-sharing application, Instagram, has surpassed Twitter in size.

Worries about Twitter's future have been...