Russians Mourn Dead Following Deadly Attack on Concert Hall 03/24/2024 Kosmopolit Russia observed a day of mourning Sunday following a deadly attack on a music venue in a Moscow suburb. Islamic State took credit for the assault that killed 137 people. VOA’s Arash Arabasadi brings us more. … Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Mastodon (Opens in new window)Click to share on Nextdoor (Opens in new window)Click to share on X (Opens in new window)