(Reuters) – The death toll from an unexplained blast last week at a factory in Russia's Ryazan region has risen to at least 25, with a total 158 people injured so far, Russia's ministry for emergency services said on social media on Tuesday.
On Monday, local emergency services said 20 people were killed and 134 people injured in the blast last week.
Pavel Malkov, governor of the Ryazan region that lies just southeast of Moscow, said on Friday that the incident had been triggered by a fire breaking out inside a workshop at the factory.
But it was unclear from Russian media reports what caused the fire or what exactly the factory was producing. Official Russian sources gave no details beyond efforts to find and treat the injured.
"As of August 18, 20 people died as a result of the emergency incident," the local emergency service headquarters said in a post on Telegram.
"There are 134 injured, of which 31 patients are in hospitals in Ryazan and Moscow, while 103 patients are undergoing outpatient treatment."