The mum and dad are believe to have died of food poisoning (Image: VK.com)
 
The pair left two children (Image: VK.com)

Natalia called the police and emergency services, then dressed the children and took them out of the flat in Bolshoye Kuzyomkino village.

News outlet 78.ru said that food poisoning is suspected as the cause of the deaths.

Gas plant worker Alexander had been given a jar of homemade pickles by his grandmother the day before.

The jar was open in the kitchen, it was reported .

It is suspected that botulinum toxin from the pickles is the cause of death.

The toxin causes paralysis and even death through respiratory failure.

Neighbour Mikhail Khomchenko ruled out alcohol poisoning, saying the couple did not drink.

“I have only positive feelings about them,” he said, stressing they were a "perfect couple”.

The children are now being cared for by Alexander’s father.

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