French police were called to the Lycée International in Ferney-Voltaire when an end of year party descended into chaos last Friday.
Police say fireworks were directed at them. They responded with tear gas.
A 16-year-old boy was arrested. He was chased by police and then pinned down and threatened with a taser by them.
Witnesses say the police overreacted and innocent students were injured by the tear gas.
Swiss Post announce job cuts
Swiss Post will eliminate up to 110 positions in 2027, blaming shrinking letter volumes and fewer over-the-counter transactions
Autumn arrives in Switzerland
The heatwave that has gripped Switzerland since May finally breaks tomorrow
Driver warning in Vaud
Drivers in western Vaud face four nights of disruption on the A1 next week.
Mixed results in school classrooms
Swiss 15-year-olds still rank among the world's best in maths and science, but their performance in reading and maths is sliding
Good news for household bills
Swiss households will pay a little less for electricity next year
Fuel reserves now in use
Switzerland is dipping into its emergency fuel reserves for the first time this year to keep petrol and diesel flowing
