A pro-Putin Chilean-American filmmaker who was imprisoned in Ukraine over allegations of spreading Russian propaganda has died in jail.

Gonzalo Lira, a 55-year-old YouTuber and film director who was born in Burbank, California, and spent part of his childhood in the Los Angeles area, died in a Ukrainian jail on Friday, the State Department confirmed to Fox News Digital.

“We can confirm the death of U.S. citizen Gonzalo Lira in Ukraine,” a State Department spokesperson told Fox News Digital. “We offer our sincerest condolences to the family on their loss.”

The Ukrainian government’s Center for Stategic Communication and Information Security said Lira was arrested for “justifying Russian aggression against Ukraine,” according to Newsweek, a violation of Article 463-2 of Ukrainian criminal law.