Seven sailors were injured on Monday after a pilot of the US F-35 fighter jet crashed on the deck of the USS Carl Vinson aircraft carrier. The US Navy said in a statement that the incident happened in the South China Sea during a routine flight operation. No details were provided on the cause of the incident or the fate of the aircraft. The Pacific Fleet said the incident was under investigation. The Vinson and another US carrier, the USS Abraham Lincoln, and their strike groups began drills on Sunday in the South China Sea. Watch this video for more.