Emma Bowman

Uber has appointed Expedia CEO Dara Khosrowshahi to be its new chief executive, a source familiar with the ride-sharing company tells NPR.

Khosrowshahi has been at the travel company Expedia for more than a decade, reports NPR's Aarti Shahani. He steps into the role at a tumultuous time, as Uber seeks to fill a leadership vacuum. Co-founder Travis Kalanick resigned under pressure in June, though he remains on the company's board.