ULYANAOVSK, August 16. /TASS/. The condition of six patients hospitalized after being poisoned by an unknown substance in Ulyanovsk, a city situated on the Volga River, is moderately grave and satisfactory, the press service of the region’s Ministry of Health has told TASS. One of the patients has died.

"Six patients are in moderately grave and satisfactory condition," a female source from the press service said.

Earlier, seven people, including two children, were taken to a local specialized clinic for urgent medical care and a children’s clinic. One of the patients died later.

According to Ulyanovsk Regional Minister of Health Sergey Panchenko, hemorrhaging is the main symptom.

They had all consumed homemade sunflower oil bought from the same producer.