A 19-year-old has been arrested after seven people were injured in a suspected knife attack at a vocational school in Ostroleka, Poland, police have said. Polish police said a 19-year-old man has been arrested following an alleged knife attack that left at least seven people injured at a vocational school in Ostroka, north of Warsaw Key points and original sources are listed below.

• A 19-year-old has been arrested after seven people were injured in a suspected knife attack at a vocational school in Ostroleka, Poland, police have said.S1

• Polish police said a 19-year-old man has been arrested following an alleged knife attack that left at least seven people injured at a vocational school in Ostroka, north of WarsawS2

• Ostroleka prosecutor Elzbieta Lukasiewicz said the victims were students and teachers.S3

• injured in knife attack at Poland school yearold student detainedS4

• The attack happened at a school in Ostroleka, 20 kilometres (12 miles) north of the capital Warsaw, said police, who released a blurred photo of the suspect following his arrest.S5

• Polish police say a man has been arrested after a knife attack left at least seven people injured at a vocational school in a city north of the capital, Warsaw. The 19-year-old was detained after emergency services rushed to the scene of the attack at Vocation...S6

• A teenager has been arrested following the incident, police said.S7

• Emergency crews raced to Vocational School Complex No. 4 in Ostrołęka, northeastern Poland, where two people were reported to be seriously injuredS8