Deaths and injuries have been reported after a gun attack at a concert hall near Moscow, Russian media say.

At least four people dressed in camouflage opened fire at the Crocus City Hall, social media video verified by the BBC shows.

Video obtained by Reuters news agency shows a large blaze and smoke rising from the hall.

Russia’s Foreign Ministry described the incident as a “terrorist attack”. Specialist police are at the scene

Footage on social media showed gunmen inside the concert hall while state media reported that some people were still inside.

Tass news agency reported a third of the concert venue is on fire and the roof is almost completely ablaze.

Russian Foreign Ministry spokeswoman Maria Zakharova called on the international community to condemn the incident, which it called “a monstrous crime”.

US National Security Council spokesman John Kirby said the images of the shooting were “horrible and hard to watch”.