Moscow's Largest Concert Hall Attacked; Explosions & Mass Shootings Reported

Some kind of major attack just occurred at a Moscow concert hall with contradictory breaking reports emerging from on the ground and several circulating unconfirmed videos.

There are possibly at least ten casualties and videos from the scene showing a large fire and plumes of black smoke over the venue. It may have been the result of a large explosion, or possibly even a cross-border drone strike, but conflicting reports say this is likely a mass shooting situation...

Video from inside the concert hall shows smoke and a chaotic scene of masses of people scrambling to evacuate the venue.

Unconfirmed statements say it happened at the largest indoor concert venue in Moscow, called Crocus City Hall.

Russia's state RIA Novosti news agency said that several gunmen opened fire on the crowd in Moscow concert hall, resulting in unknown casualties, the AP has cited.

The incident has unfolded at during a week of rapidly escalating cross-border attacks on Russian territory from Ukraine, and also large-scale retaliatory strikes on Ukraine by Russian aerial forces.

Reports of armed men storming the concert hall, but the visuals also strongly suggest a large explosion...

developing...