FACTBOX: What we know about attack on school in Moscow Region

MOSCOW, December 16. /TASS/. A teenager armed with a knife attacked a school in the village of Gorki-2 in the Odintsovo district of the Moscow Region, killing a child and injuring a security guard, the press service of the Russian Investigative Committee reported.

TASS has compiled the key details known about the incident.

- The attack took place at a public school in the village of Gorki-2, emergency response services told TASS.

- Students were evacuated from the building, while some left the school on their own.

- Several ambulance crews and law enforcement officers are working at the scene.