Blast reported at petrochemical plant in Russia's Bashkortostan, regional authorities say

Nov 4 (Reuters) - An explosion at the Sterlitamak petrochemical plant in Russia's Bashkortostan caused a partial collapse of a water-treatment facility, the administration of the city of Sterlitamak said on Tuesday.

There no immediate reports of injuries, the administration said of the city located in the Ural Mountains said the Telegram messaging app.

It was no immediately clear what caused the explosion.