A 19-year-old self-taught aviator from Memphis was detained in Antarctica while attempting a solo flight to seven continents, according to a CNN report.

Teenage aviator Ethan Guo was detained by Chilean authorities after he flew to an Antarctic base without authorization.

Ethan Guo, 19, had been documenting his attempt to fly solo to all seven continents on social media. He is no longer in custody but has no easy way to leave an island off Antarctica’s coast.