WARSAW, Oct. 8 (Xinhua) -- One person was killed and two others were injured in a knife attack at a school near Wyszkow in Poland's central Mazowieckie province on Thursday, local media reported.
The attack occurred Thursday morning when a 15-year-old boy entered the school and stabbed the school principal, a cleaner and a teacher, the Polish broadcaster Polsat News reported
The 37-year-old cleaner later died despite resuscitation efforts, said the report, adding that the suspect was detained by police.
The attack came a day after a 19-year-old student injured nine people in a knife attack at a school in Ostroleka, also in Mazowieckie province. Police arrested the suspect later that day. ■