Police in Poland have arrested a man following an attack that left eight people injured at a vocational school in a small town, authorities say. Police in Poland arrested a man following an attack on Wednesday that left seven people injured at a vocational school in a small town north of the country's capital, Warsaw. Key points and original sources are listed below.

• Police in Poland have arrested a man following an attack that left eight people injured at a vocational school in a small town, authorities say.S1

• Police in Poland arrested a man following an attack on Wednesday that left seven people injured at a vocational school in a small town north of the country's capital, Warsaw.S2