Overview
- Emergency crews pronounced the 21-day-old dead at the scene outside a residential block in Vasilyevo, Zelenodolsk district.
- The Russian Investigative Committee said it has opened a criminal case and is gathering evidence.
- Witnesses reported hearing a young girl screaming from a fourth-floor window before finding the infant on the ground.
- Local reports allege the baby's five-year-old sister threw the newborn, reportedly out of jealousy, a claim investigators have not verified.
- Officials are examining why the children were left unattended, and the mother could face criminal charges.