A widebody cargo plane hauling packages for Amazon abruptly plunged out of the sky and slammed into a bay on Saturday as it was preparing to land in Houston. All three people on board were killed.

The Boeing Co. 767-300, operated by Atlas Air on a flight that had departed from Miami, disappeared from radar and lost radio contact, landing in a bay about 40 miles (64 km) from Houston's George Bush Intercontinental Airport, said Robert Sumwalt, the National Transportation Safety Board chairman who's leading the investigation.

The jet fell thousands of feet in seconds after what had been a routine descent, according to Sumwalt and the flight-tracking website FlightRadar24. Human remains were recovered at the scene, the FBI's Houston office said in a tweet.