Suspects in the Russia concert hall attack, which left more than 130 dead, arrived at a Moscow district court on Sunday night. Russian authorities arrested four suspected attackers on Saturday, with seven more detained on suspicion of involvement in the attack. #news #russia #moscow Subscribe for more Breaking News: http://smarturl.it/AssociatedPress Website: https://apnews.com Twitter: https://twitter.com/AP Facebook: https://facebook.com/APNews Instagram: https://www.instagram.com/APNews/ ​ This video may be available for archive licensing via https://newsroom.ap.org/home