A baby boy not older than 12 weeks has been found in a box on a staircase in an apartment block in the Russian town of Obninsk. The box was meant for a cat, who – after having found a new soul in misery, warmed up the baby and was worried to let him go.

The baby in the cat box was discovered by one of the neighbors, who had heard what she thought to be loud meowing and rushed to rescue the cat from possible offenders.

The furry feline has been living in the apartment block for three years, fed and petted by its residents. The day when she found an unexpected guest in her box was a freezing one, but the baby was very warm, according to the woman, who first discovered the abandoned boy.

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"She has been keeping the baby warm for several hours and meowing to call for help," she told Ruptly video agency.

The woman, who turned out to be a nurse, said she also found a bag with baby food and diapers. The boy was well and tidily dressed, she added.

But it was the baby's new furry carer who was worried about the boy even after police and medics arrived. She kept close to the baby and didn't want to let it go, the woman said. "When an ambulance worker took the baby to bring him into the car, the cat followed him and pitifully meowed," she shared, also saying the four-pawed adoptive mother tried to jump into the ambulance to follow the boy.

The cat then sat for hours on the road by the house waiting for the car to return and bring him back, neighbors said.

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The baby boy was taken to one of the hospitals in Obninsk, located some 60 miles from the Russian capital. Doctors said the boy – who might be from six to 12 weeks old – is completely healthy and feeling well. "We have received a lot of feedback from sympathizing residents, who are willing to help and ask if any food, toys and other things are needed," a pediatric nurse told Ruptly.

The police is now trying to identify the baby and is searching for his parents, while the cat – who looks to be expecting herself – is receiving extra care and treated like a hero by the residents.