Two people injured in attack in Polish school, 15-year old detained, minister says

‌Two adults ​were ‌injured in an attack "with a ‌sharp object" ‌in a ⁠Polish ​school ⁠and a 15-year-old was ⁠detained, Interior ​Minister Marcin ⁠Kierwinski said on ⁠Thursday, ​adding a ⁠janitor was ⁠being ⁠rescuscitated.