A French DJ who performed at the Paris Olympics opening ceremony has filed a legal complaint after suffering “an extremely violent campaign” of online abuse.

Barbara Butch has been threatened with “death, torture, and rape, and has also been the target of numerous antisemitic, homophobic, sexist and grossophobic insults [stigma based on body size]”, her lawyer said.

Police in Paris have launched an investigation.

The 43-year-old producer and activist appeared alongside a number…