The president of Uber has resigned after just six months at the company.
The San Francisco-based firm confirmed Jeff Jones’ resignation on Sunday in a short statement.
His departure comes just weeks after the taxi booking app’s CEO Travis Kalanick was filmed berating a driver who confronted him about fare changes.
After video of the argument emerged, Kalanick apologised and admitted he needed "leadership help".
He announced that the company was looking for a chief operating officer earlier this month.
On Sunday, Uber said in a statement: "We want to thank Jeff for his six months at the company and wish him all the best."
The resignation is said to have been "completely unexpected".
A source told the BBC Mr Jones was frustrated the company was hiring a new chief operating officer and that he was not among the candidates.
But according to technology news site Recode, Mr Jones left because of Uber's continued struggle with issues surrounding sexism and sexual harassment.
Mr Jones’ resignation will reportedly take effect immediately.