Moscow concert hall shooting leaves 143 dead, suspects detained
Russia arrested 11 people, including four gunmen, after a shooting rampage at a Moscow concert hall killed at least 143. Da’ish claimed responsibility, but Russia suspects a Ukrainian link. FSB detained the terrorists heading to Ukraine. The attackers set a fire, causing deaths. US confirmed Da’ish's involvement. Putin has yet to comment. The world condemned the attack. Security measures were heightened across Russia.