A 14-year-old boy was taken to hospital after he was hit with a stone by another child in an orphanage in Bulgaria's capital city of Sofia on Monday.
The victim, who lives in Petko Slaveykov orphanage, suffered head and eye injuries but his condition is stable, doctors reported.
That is the second case in two days when a child from the same home was involved in an accident after a girl, aged 11, fell off the third floor of the building.
Emilia Koleva was discovered by a passing-by woman, sprawled on the street, her body covered in blood all over.
"She had three of her vertebrae broken and a brain concussion. Her life is out of danger," said Doctor Uzunov from Sofia's Pirogov Emergency Institute.
Police has launched an investigation into both cases.