SAN FRANCISCO - Ride-sharing giant Uber said Monday it is suspending its self-driving car program after one of the vehicles struck and killed a pedestrian in the US state of Arizona. The Uber vehicle was in autonomous mode, with an operator behind the wheel, when it hit a woman walking in the street in the city of Tempe late Sunday, according to the San Francisco-based company. The victim was hospitalized and later died from her injuries. “Our hearts go out to the victim’s family,” an Uber spokesperson told AFP. “We are fully cooperating with local authorities in their investigation of this incident.”