President Donald Trump has reacted to the death of a 22-year-old college student who was detained for nearly a year and a half in North Korea.

The president says if Otto Warmbier had been returned home to the U.S. earlier, "I think the result would have been a lot different."

Trump says he spoke with Warmbier's parents and says it's "incredible what they've gone through."

"He should have been brought home a long time ago," he added.

The college student died shortly after his return to Ohio after being held for more than 17 months.

Warmbier's parents haven't cited a cause of death, but "awful, torturous mistreatment" by North Korea.