MOSCOW, November 12, 12:09 /ITAR-TASS/. Gas explosion is the main version of the tragedy in a multi-storey apartment house in the Sergiyev-Posad district, Moscow region, in which five people were killed and another seven were injured, a spokeswoman told Itar-Tass on Tuesday.
"As of now, gas explosion is the investigators' main lead," spokeswoman for the regional department of the Investigative Committee Irina Gumennaya said.
The accident occurred in the village of Zagorskiye Dali on Monday. The blast collapsed part of the house roof and upper storey ceilings.
Forensic experts and investigators are working at the scene to establish the precise cause of the blast. Tenants and victims will be questioned, the Investigative Committee said.
Initial reports said the fatalities were four members of a family - a six-month-old baby, its 33-year-old mother, 71-year-old grandmother and 81-year-old grandfather. The Emergency Situations Ministry later revised the death toll to five.
"Five persons were killed in the explosion and another seven were injured; of those five were taken to hospital," Ministry spokeswoman Irina Rossius told Itar-Tass.