Kuwait’s Crown Prince Sheikh Nawaf al-Ahmad al-Sabah travelled to the United States for "routine" medical tests on Tuesday, state news agency KUNA reported.

Sheikh Nawaf  underwent minor back surgery in 2013 in Germany. He became next in line to lead Kuwait in 2006, shortly after Sheikh Sabah al-Ahmad al-Sabah became ruling emir.
The crown prince underwent successful medical check-ups last August in the United States, KUNA reported at the time.
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