Switzerland bus crash kills 28, including 22 children

28 people - including 22 children - have been killed in a bus crash in Switzerland, police say. Another 24 children were injured in the accident in the canton of Valais, near the border with Italy. The bus - which was returning to Belgium - crashed into the wall of a tunnel. Both its drivers were killed. The children from the Belgian villages of Lommel and Heverlee were returning home after a skiing holiday. There were 52 people on the bus. The bus crashed near the town of Sierre shortly after 21:00 (20:00 GMT) on Tuesday. Two classes of schoolchildren from the Flemish-speaking part of Belgium were travelling home after spending a week skiing in Val d'Anniviers, in the Swiss Alps.