In the basic version of police, the explosion in an apartment building on Poznyaky in Kiev caused the gas mixture.
According to BBC News Ukraine, rapid tests showed that the explosives in the building was not, although this version previously suggested the Minister of internal Affairs Arsen Avakov.
“Still under examination, but a preliminary version called this gas”, – said the press service of the police of Kiev.
According to the engineer on gas supplies Paul Kundirenko, for such a powerful explosion, it is necessary that the apartment was accumulated gas. This could be due to an open or faulty appliances
“To cause an explosion, you need a little closed room, where closed Windows and doors, gas accumulates, someone’s coming, including light, there is a spark, everything explodes,” – said the expert.
But the system of gas supply in homes has several degrees of protection, and what the apartment has accumulated a large amount of gas is not yet known.