A 12-year-old child has died after being shot in a primary school in the Finnish city of Vantaa, just north of the capital Helsinki, the police said on Tuesday. Two other 12-year-olds were seriously injured in the incident, the police said. The emergency services arrested another 12-year-old pupil about a kilometre away from the school. The suspected perpetrator had a firearm with him. The police said the arrest went smoothly. The authorities had been alerted at around 9 am. Shortly afterwards, a large contingent of police officers cordoned off the school and the surrounding area. All of the c…