President Emmanuel Macron and his government have been forced back on the defensive after rioters ransacked luxury boutiques and torched cafes and a bank on Saturday in the latest flare-up of violence against Macron's pro-business reforms.

"From next Saturday, we will ban 'yellow vest' protests in neighborhoods that have been the worst hit as soon as we see sign of the presence of radical groups and their intent to cause damage," Prime Minister Edouard Philippe said in a televised speech.

Some 10,000 people participated in Saturday's protests in the capital, according to police estimates, including a hard-core of about 1,500 troublemakers who Philippe said were bent on "looting, destroying property and causing injury."