MOSCOW, July 30. /TASS/. One person was injured as a result of a blast that occurred in a Moscow City building after a drone attack, emergency services told TASS.

"A security guard was injured in a Oko-2 building as a result of the blast. Glazing from the first to the forth floor were shattered as a result of a drone attack," the source said.

Earlier, Moscow Mayor Sergey Sobyanin said that the city was attacked by Ukrainian drones. The facades of two office buildings of the Moscow City were slightly damaged. There were no casualties.

According to the Russian Defense Ministry, on the morning of July 30, Ukraine tried to attack Moscow facilities with drones, one of which was destroyed in the air over the territory of the Odintsovo district and two others were suppressed and crashed in the Moscow City. The capital's Vnukovo airport was closed for arrivals and departures due to the incident.