Actor Sean Penn won the Academy Award for Best Supporting Actor at the 98th Annual Academy Awards on Sunday but was not present to accept the honor. Penn, 65, won for his performance in "One Battle After Another," with the award announced by presenter Kieran Culkin.

Penn was absent from the ceremony because he was in Ukraine meeting with President Volodymyr Zelensky. According to reports, Penn traveled by train to reach Ukraine for the diplomatic meeting.

The actor has been a vocal advocate for Ukraine throughout its ongoing conflict with Russia. Penn has made multiple trips to Ukraine since the war began and has consistently supported the country's cause through his activism and public statements.

Penn spent the weekend abroad as part of his continued efforts to support Ukraine. The meeting with Zelensky represents the latest in a series of engagements Penn has undertaken related to the conflict.

This marks a rare instance of an Oscar winner being completely absent from the ceremony due to international diplomatic activities. Penn's decision to prioritize his Ukraine advocacy over attending the awards show reflects his sustained commitment to the cause.