U.S. immigration officials said they detained Khaby Lame, one of the world's most popular TikTok personalities, last week and told him to leave the country after they said he "overstayed the terms of his visa.

Khaby Lame, the world's most popular TikTok personality with millions of followers, has left the U.S. after being detained by immigration agents in Las Vegas for allegedly overstaying his visa.

A voluntary departure — which was granted to Lame — allows those facing removal from the U.S. to avoid a deportation order on their immigration record, which could prevent them from being allowed back...