PARIS –  Thousands of high school students are protesting in Paris over the expulsion of immigrant children and their families. Police have used tear gas against some of the protesters.

The demonstration comes as the government is finalizing a report Friday into the treatment of a 15-year-old girl taken by police from a school field trip, then deported to Kosovo with her family as illegal immigrants.

The incident shocked many in France and inflamed the anger of high school student unions, which staged Friday’s protest. The girl told The Associated Press from Kosovo that she appreciates the students’ support.

Most of them rallied peacefully, but a few threw stones and pens at riot police trying to slow down their march. Police responded with tear gas.