France, Dec. 1 -- Online media Blast, which published the image of the officers, who had their faces concealed, reported that it had been taken inside a police station.

It said that police officers standing hooded in front of something turned upside-down was a "well-known practice among hooligans" - the very peoplepolice are meant to confront.

The black banner, with the words "Antifa Feminists against transphobia and racism" written on it in red and white, was seized by police officers during a demonstration against sexual and gender-based violence on 22 November in Paris, according to Blast.

Paris police headquarters "immediately opened an investigation" after the "publication of a photo showing one of its units holding a banner upsid...