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DETROIT — Tesla reported 273 crashes involving partially automated driver-assist systems, according to statistics about the industry released by U.S. safety regulators on June 15.

Tesla Inc. has had a “very tough quarter” as it struggles with supply chain snags, Chief Executive Officer Elon Musk warned in an internal memo, imploring workers to help get the electric vehicle maker back on track.

The co-founder of San Diego-based autonomous driving company TuSimple, Mo Chen, announced he started a new company called Hydron to bring to market Class 8 hydrogen-powered trucks equipped with Level 4 autonomous driving technology.

DETROIT — A U.S. investigation into Teslas operating on partially automated driving systems that have crashed into parked emergency vehicles has moved a step closer to a recall.

Uber Freight and Waymo Via have entered into a strategic partnership that aims to marry Uber’s freight marketplace with Waymo’s automated truck technology, the companies announced June 7.

Self-driving trucks soon will make deliveries to Walmart Inc.’s Sam’s Club stores in the Dallas-Fort Worth area, marking a significant expansion of autonomous vehicles operating in live traffic.

A top Federal Motor Carrier Safety Administration official told safety executives attending a commercial vehicle safety conference that a proposed rulemaking for fully automated heavy trucks is targeted for later this year.

Tesla Inc. is facing stepped-up scrutiny from U.S. regulators who have received 758 complaints of cars made by the company that suddenly brake at high speeds, more than double the number of reported incidents earlier this year.

Electric carmaker Tesla Inc. needs to cut staff by around 10%, CEO Elon Musk said, noting he had a “super bad feeling” about the economy, according to an internal email seen by Reuters.

California regulators on June 2 gave a robotic taxi service the green light to begin charging passengers for driverless rides in San Francisco, a first in a state where dozens of companies have been trying to train vehicles to steer themselves on increasingly congested roads.