Probe into gas blast at Achinsk refinery in the Krasnoyarsk region.
'The fate of three people is currently unknown'. Picture: Yulia Lebedeva, Channel 7 Krasnoyarsk
Seven other victims were hospitalised as a result of the tragedy which saw a fire sweep through the oil refinery.
'As a result of the fire five people were killed,' the Investigative Committee said in a statement. 'The fate of three people is currently unknown'.
The Siberian refinery is owned by state oil giant Rosneft.
The refinery processes 140,000 barrels a day and the blast was in a 'fractionation unit'.
Complete with shield and intimidating helmet, President will receive gift from Novosibirsk State University in recognition of his 'iron wolf' character.
Tattooed 2,500-year-old princess found mummified and preserved in permafrost could finally be reburied in special monument.
Hope for millions around world with preparations under way for clinical trials on people starting next year.