MOSCOW, December 17. /TASS/. The Russian Investigative Committee has launched a probe into a Moscow blast that left two people killed, the Committee’s Moscow department told TASS.

"The Russian Investigative Committee’s department in Moscow has opened a criminal probe into an incident on Moscow’s Ryazansky Avenue where two men were killed," the investigators said in a statement.

Investigators and criminalists are currently working at the scene. Emergency officials told TASS that the blast might have been caused by an explosive device. A search is taking place.

Earlier, emergency services told TASS that an explosion shook the first floor of a residential building that was not gasified on Ryazansky Avenue in southeastern Moscow. The blast damaged the facade glazing of the first four floors of the building.