The planes both carried tourists from the cruise ship Royal Princess on sightseeing trips. Preliminary reports indicate a mid-air collision, the Coast Guard said.
Twenty-two accidents, including 15 plane crashes, weren't investigated during the partial government shutdown. Instead of visiting the site of the crash, examiners might just examine stored wreckage.
The National Transportation Safety Board says a natural gas company engineer made a major mistake in developing construction plans, resulting in a disastrous chain reaction.
The driver of a Tesla Model X on autopilot died after it hit a barrier between a highway lane and an exit ramp. The NTSB found he didn't brake or have his hands on the wheel shortly before collision.
The National Transportation Safety Board says it has removed the high-tech car maker from a probe into the fatal crash last month of one of its vehicles in California.
The National Transportation Safety Board said two recent commuter rail accidents that killed one person and injured more than 200 others were caused by engineers falling asleep at the controls.
Paul Schuda was the director of the NTSB's training center in Ashburn, Va. He and two other people died when the pilot's Cessna crashed into the woods in southeastern Indiana.
Investigators found the pilot was impaired by medical conditions and drugs including Valium, oxycodone and Benadryl. The FAA doesn't require medical certification for commercial balloon operators.
Two U.S. agencies are ending their push to screen truck drivers and train operators a year after saying the sleep disorder "can cause unintended sleep episodes and resulting deficits in attention."