A suspect, also a minor, was later apprehended, Finnish police said. The victims, all aged 12, were taken to hospital.
Police said they received an alert at 9:08am for the shooting that took place at the Viertola school in Vantaa, a suburb north of Helsinki. The school has about 800 students, aged from seven to 15, and a staff of some 90 people, according to the local municipality.
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