POLAND SCHOOL ATTACKS — INTERNATIONAL NEWS

A school caretaker has been killed and two teachers injured in a knife attack in Poland, amid growing concerns about further violence at schools.

Police say a fifteen-year-old former pupil entered a primary school northeast of Warsaw on Thursday morning, carrying three knives.

A thirty-seven-year-old female caretaker died from her injuries, while the school's headteacher and another teacher were hurt trying to stop the attacker.

The incident follows a separate school stabbing on Wednesday, in which several people were injured.

Police have also detained a seventeen-year-old in connection with an alleged threat against another school.

Polish Prime Minister Donald Tusk has held an emergency meeting, warning about the possibility of copycat attacks.

Meanwhile, disturbing photographs and messages are circulating among Polish students.

A source in Poland has told our newsroom that students are sharing warnings about an alleged event being referred to as "Krwawy Piątek", which translates into English as "Bloody Friday".

The source claims some students are considering staying away from school on Friday amid fears of further violence.

Our newsroom has received screenshots from private messaging groups showing apparent injuries, bloodstained clothing and warnings about possible further attacks.

However, we have not independently verified the origins of these images or established any connection to the confirmed incidents.

There is also no verified evidence from the material we have received that further attacks are planned.

Polish authorities are investigating whether online activity may have influenced the violence.

Prime Minister Donald Tusk has ordered increased police visits to schools as investigations continue.

Anyone receiving specific threats is encouraged to report them to police rather than circulate unverified warnings.

We'll bring you further updates as the situation develops.