Washington

Four people were killed after the small planes they were travelling on collided in mid-air at North Las Vegas Airport in the US state of Nevada on Monday.

Each aircraft had two people aboard.

The two aircrafts involved in the accident were a Piper PA-46 and Cessna 172N. Both are single-engine fixed-wing small planes.

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 Preliminary information indicates that the Piper PA-46 was preparing to land when it collided with the Cessna 172N. The Piper crashed into a field next to the runway and the Cessna fell into a water retention pond.