Hundreds of people, mostly teenagers, have been arrested after protests at high schools across France. The protests happened this week and started near Paris, then spread all over the country. Students blocked school doors, set fire to rubbish bins and sometimes threw things at police. Police used batons and tear gas to control the crowds. On Tuesday alone, about 440 people were arrested, and many students, school workers and police were hurt.

The main reason for the protests is poor conditions in French high schools. Students want smaller classes, more teachers and better school buildings. Many young people say their lessons are cancelled often because teachers are not replaced when they are absent. Some also say their schools are dirty or unsafe.

Because of the protests, many schools could not open, and teaching was stopped in about 400 places. The French government now has to decide how to deal with these problems and stop more violence from happening in the future.