16-year-old stabs two classmates at school in Istanbul's Esenyurt district

A 16-year-old pupil stabbed two classmates, aged 15 and 14, during an argument at a secondary school in Istanbul's Esenyurt district on Wednesday, Turkish broadcaster Habertürk reported, according to Euronews Albania and Philenews. A third pupil, also 14, was lightly hurt in the same incident.

All three received first aid at the scene before being taken to hospital, where treatment was continuing, the outlets said. The attack happened at a school in the Barbaros Hayrettin Pasha neighbourhood, in the western outskirts of the city, Il Fatto Quotidiano reported.

Pupils in the same class began arguing for a reason that has not been established, and the dispute quickly escalated into the attack, Euronews Albania and Philenews reported. Police and ambulances were called to the school after the alarm was raised, and the 16-year-old suspect was placed under police supervision. A preliminary police investigation confirmed that he had attacked the two classmates with a knife, Philenews reported. Investigators are still examining what caused the argument and the exact circumstances of the attack, the outlets said.

It was the second knife attack at an Istanbul school in 24 hours. On Tuesday morning, a 15-year-old girl stabbed eight pupils at Sayh Samil secondary school, a religiously-oriented institution on the outskirts of Istanbul, Il Fatto Quotidiano reported; one of the injured, a 10-year-old girl, died hours later, according to Euronews Albania and Philenews.

The Istanbul stabbing came on the same day a 19-year-old attacked pupils and teachers with a knife at a school in Ostrołęka, Poland, injuring nine people, Il Fatto Quotidiano reported; the two attacks were unrelated.