Waymo has suspended its self-driving taxi service across five US cities after multiple vehicles drove into flooded roads and became stranded. An empty robotaxi entered a flooded road in San Antonio, Texas on 20 April and was swept into a creek; a similar incident followed in Atlanta, Georgia. The company has issued a voluntary recall of nearly 3,800 vehicles and is developing additional software safeguards, while also temporarily halting freeway operations in San Francisco, Los Angeles, Phoenix, and Miami to evaluate performance in construction zones.