Sen. Marco Rubio (R-Fla.) on Sunday defended tweeting out a photo from an online meeting with Ukraine’s president, dismissing complaints that participants were asked not to post anything on social media out of concern for the wartime leader’s safety.

Rubio insisted that his photo of President Volodymyr Zelenskyy was shared before he and others were told by the Ukrainian ambassador not to share any information from the meeting. He also claimed that “there was no security risk” in what he did.

Zelensky has been working from bunkers since Russian troops invaded Ukraine and has survived at least three assassination attempts by Kremlin-backed assassins in the past week, according to a Times of London report published Thursday.