Uber Technologies Inc co-founder Travis Kalanick stepped down as chief executive of the ride-hailing service, the New York Times reported on Wednesday.
Kalanick's exit came under pressure from Uber's investors, who were seeking his exit, the paper reported citing people with knowledge of the situation.
Kalanick will however remain on the board of the firm.
There was a review of practices at the firm which has had scandals including complaints of sexual harassment.
Mr Kalanick had last week said that he was taking an indefinite leave of absence.
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