Several terrorists opened fire and detonated explosives at the hall, which killed at least 143 people and left several hundred injured.

Several armed terrorists stormed into Moscows Crocus City Hall concert on Friday night and began shooting at the audience at point blank, Russian state-owned news agency Sputnik reported posting a video in which at least three maskless men in camouflage burst into the hall through the stalls and started shooting can be seen.

According to the Sputnik correspondent from the scene, the terrorists shot people point-blank and threw incendiary bombs. Those who managed to get out of the hall were pointed to the emergency exits by the complexs security while the guards remained in place.

Moscow terror attack: Several terrorists opened fire and detonated explosives at the hall, which killed at least 143 people and left several hundred injured, according to Reuters, the deadliest attack in Russia for 20 years. The Russian investigators on Saturday claimed that it had arrested 11 people, including four suspected gunmen in connection with a shooting rampage.

Security has been tightened at airports, transport hubs and across the capital Moscow. All large-scale public events have been cancelled across the country, according to Reuters.



Eyewitnesses recount horror:

Eyewitnesses recount horror at the concert hall. A witness told AFP it was a few minutes before the start of the concert by Piknik when automatic gunfire rang out. "I realised right away that it was automatic gunfire and understood that most likely its the worst: a terrorist attack," said Alexei, who would not give his last name.

One witness, who asked not to be identified by name, told Reuters that a stampede began soon after the shooting.