A federal judge rejected Uber Technologies Inc's bid that it not be required to disclose emails from Chief Executive Travis Kalanick in a California lawsuit accusing the popular ride-booking service of deceiving customers about how it shares tips with drivers.

Taxi firms including Uber, the online cab-hailing company banned in New Delhi, will have to install panic buttons if they are to operate in India's capital under new rules framed after allegations that a driver for the U.S. firm raped a passenger.

Chinese Internet giant Baidu Inc (BIDU.O) agreed to buy a stake in Uber as the online car-hailing service seeks to gain ground on rivals with powerful backers in one of the world's biggest transportation markets.

Chicago opened a new front in the war on ridesharing services like Uber on Wednesday, approving a plan to sponsor an app for riders to hail local cabs.

Portland sued Uber on Monday to stop the fast-growing ride-hailing service from operating in the Oregon city until it follows local regulations.

U.S. online ride-hailing service Uber has been banned from operating in the Indian capital after a female passenger accused one of its drivers of rape, a case that has reignited a debate about the safety of women in the South Asian nation.

Uber is in talks to sell more than $1 billion in convertible debt, a source familiar with the matter said, soon after the U.S. taxi service said it raised $1.2 billion in its latest funding round.

Amanda Bynes' parents have a new tool to keep track of her whereabouts- an Uber account on her cell phone.

Ridesharing company Uber suspended its operations in the U.S. state of Nevada late on Wednesday in a setback that it said would cost nearly 1,000 jobs.

Singapore said on Friday it plans to regulate fast-growing third-party taxi booking services like Uber and GrabTaxi for the first time, capping fees and requiring them to dispatch only licensed cabs and drivers.