Gonzalo Lira, a 55-year-old Chilean American who was imprisoned in Ukraine after allegedly spreading Russian propaganda then violating his bail conditions, has died in a Ukrainian jail.

Posting on X, formerly Twitter, conservative social-media personality Tucker Carlson said he had been informed of the death by Lira's father. Speaking to Newsweek, a State Department official confirmed "the death of a U.S. citizen in Ukraine" and offered their "sincerest condolences to the family on their loss." The cause of Lira's death has not been confirmed. Newsweek contacted the Ukrainian Foreign Ministry for comment by email on Saturday.

Lira was formerly a pick-up artist who posted videos to YouTube under the name 'Coach Red Pill.' He was living in Kharkiv when the Russian military launched a full-scale invasion of Ukraine in February 2022.

Lira gained a following by posting content online hostile to the Ukrainian government and its President Volodymyr Zelensky. Lira baselessly branded Ukraine's leader a "cokehead," and described the Russian operation as "one of the most brilliant invasions in military history."