Giant fireball erupts after huge explosion on St Petersburg gas pipeline

GAS pipeline exploded near the village of Bergardovka in Leningrad Region.

Videos from the centre of St Petersburg - close to the gas pipeline belonging to Gazprom Transgaz SPB - shows the visibility of the blast, as the fire keep burning.

In total more than 800,000 people receive heat from the Severnaya plant.

It was unclear who is behind this explosion.