French Interior Minister Gerald Darmanin said he was launching a probe into clashes that broke out on Monday after police cleared out a new migrant camp in Paris' Place de la Republique.
People posted photos and videos on social media of police hitting demonstrators as they moved in to clear the square of migrants' tents, which the police said had been set up without official permission.
"Some of the images of the dispersion of the illegal migrant camp at Place de la Republique are shocking," Darmanin wrote on Twitter in the early hours of Tuesday, adding that he was seeking a full report into the incident.
The migrant camp at Place de la Republique emerged just a week after police had cleared out a bigger, illegal migrant campsite near the French national sports stadium.
France has joined other European states, such as Italy and Britain, in taking a tougher stance on migrants since the outbreak of the Syria conflict in 2011 triggered a migrant crisis across Europe.
Opinion polls show voters are worried about the issue of migration, which in turn has driven support for far-right leader Marine Le Pen, who is likely to be President Emmanuel Macron's main opponent in the next presidential election in 2022.
Prince Harry said on Friday that he wanted reconciliation with the British royal family but his father King Charles will not speak to him over a row over his security and he did not know how long the monarch, who has cancer, would live.
A magnitude 7.4 earthquake struck Drake Passage between Cape Horn and Antarctica at a depth of 10 km (6 miles) on Friday, the United States Geological Survey said.
A ship with humanitarian aid and activists for Gaza was bombed by drones while in international waters off Malta early on Friday, its organisers said, and the Maltese government said after a rescue operation that everyone on board was safe.
A power outage hit several regions of Indonesia's resort island of Bali on Friday and efforts were underway to restore services to those affected, state utility Perusahaan Listrik Negara said.
A Russian drone attack late on Thursday set buildings ablaze in Ukraine's southeastern city of Zaporizhzhia, injuring 29 people, regional governor Ivan Fedorov said.