The co-founder of ride hailing company Lyft Inc. said on Tuesday a fatal collision in which an Uber Technologies Inc. self-driving vehicle struck a pedestrian could have been prevented.

"I don't know all the specifics. I did see the video. It did look like both the tech and the driver could have or should have prevented that. But I don't know all the details," Lyft co-founder John Zimmer told a small group of reporters during a visit to Washington.

Elaine Herzberg was walking her bicycle outside the crosswalk on a four-lane road in the Phoenix suburb of Tempe in the evening on March 18 when she was struck by the Uber vehicle traveling at about 40 mph (65 kph), according to police. The Volvo XC90 SUV was in autonomous mode with an operator behind the wheel.