FILE  - In this Dec. 13, 2016 file photo, an Uber driverless car is displayed in a garage in San Francisco. Uber suspended all of its self-driving testing Monday, March 19, 2018, after what is believed to be the first fatal pedestrian crash involving the vehicles. The testing has been going on for months in the Phoenix area, Pittsburgh, San Francisco and Toronto as automakers and technology companies compete to be the first with the technology. Uber's testing was halted after police in a Phoenix suburb said one of its self-driving vehicles struck and killed a pedestrian overnight Sunday. (AP Photo/Eric Risberg, File)
An Uber driverless car in San Francisco. The firm has ramped up spending on the technology. AP

Uber boosts spending on driverless technology