At least 12 injured in explosion in key Russian industrial city

The blast caused the partial collapse of a residential building in Nizhny Tagil, destroying some 15 apartments

A suspected household gas explosion has caused part of a five-story apartment block in the city of Nizhny Tagil in Russia's Urals to collapse, the Emergencies Ministry said on Thursday.

The ministry has reported that a number of people have been pulled from under the rubble while s