Twitter chief executive Dick Costolo steps down

  • Dick Costolo has stepped down as chief executive officer of Twitter, the social media firm announced.

    Twitter co-founder Jack Dorsey will be the interim boss from July 1, till a replacement is found.

    Costolo, who faced pressure from investors unsatisfied with the internet company’s user growth, said in a statement that he was "tremendously proud” of his team.

    Dorsey indicated that the next chief executive of Twitter could be an insider or an outsider.

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