A pilot was killed and another injured as Virgin Galactic's SpaceShipTwo space tourism craft crashed in the California desert.
The craft was flying a manned test when it experienced what the company described as "a serious anomaly".
It was undergoing its first powered test flight since January over the Mojave Desert, north of Los Angeles.
Virgin Group founder Sir Richard Branson said he was "shocked and saddened" by the "tragic loss".
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