Russian authorities declared a state of emergency in the Siberian city of Irkutsk after cheap surrogate alcohol claimed dozens of lives over the weekend.

Authorities conformed that at least 49 people died of alcohol poisoning after they drank a kind of bath oil in hope that it would provide them the same buzz as booze. Another 15 individuals are said to be still in critical condition in different hospitals in the country’s sixth-largest city.

The state of emergency in Irkutsk, which has a population of nearly 1.1 million, was announced by Mayor Dmitry Berdnikov after meeting with local authorities.

Dmitry Peskov, a spokesperson for President Vladimir Putin, said, “Undoubtedly, this is a terrible tragedy. Undoubtedly, this is a well-known set of problems. The president has been informed, and, without a doubt, this requires the closest attention and adoption of measures.”

Alexei Krupin, the chief of Siberia’s alcohol regulating agency, said a preliminary investigation revealed that the bath oil bottles were labeled as containing ethyl alcohol, with clear warnings that the liquid in the bottles wasn’t meant to be consumed internally. The liquid, in fact, contained highly hazardous methyl alcohol and antifreeze.

Two people suspected of distributing the bath oil have been taken into custody and more than 2,000 liters of spirits have been confiscated, as Russia’s top investigative agency has launched a criminal investigation into the deadly incident.