Penza, 9 January 2015. PenzaNews. A 26-year old woman and her 8-year old daughter have died in a wooden house fire on Ostrovnaya street in Penza on Friday, January 9.

According to the regional EMERCOM department, the incident occurred at night.

“The roof burned down and collapsed, the building burned out completely from the inside. 29 firefighters and 6 vehicles were involved in putting down the fire,” the officials commented for PenzaNews agency.

The authorities are investigating the case.

“According to found evidence, the fire may have been caused by an electricity spark,” Lyudmila Fomina, Senior Assistant of the Head of the Investigative Department of the city Investigative Committee of the Russian Federation, told PenzaNews agency.

According to her, the police are trying to establish the picture of the tragic event.