WARSAW, Oct. 7 (Xinhua) -- A knife attack at a school in the central Polish city of Ostroleka injured at least seven people on Wednesday, two of them seriously, Polish radio station RMF reported.
The attacker, a 19-year-old student at the school, fled after the attack but was later arrested by police, RMF said.
Most of those injured were students, while one was a teacher, according to the report. ■