After Uber's fatal accident, is it the end for driverless cars?

With news that a self-driving car killed a female pedestrian in Arizona on Monday, safety campaigners have begun to raise questions about driverless technology and whether companies should continue testing the vehicles.

Uber immediately suspended all testing of its self-driving cars in Tempe, Pittsburgh, San Francisco and Toronto after it emerged that one of its fleet was involved in the crash - the first known pedestrian death involving a fully autonomous vehicle.

With tests of robotic vehicles become more ambitious it was perhaps only a matter of time before such a tragedy occurred, but it still brought fresh attention to concerns over the technology.