Hundreds of people also took part in authorized protests in other French cities, including Lyon and Marseille, which took place peacefully. These echoed marches elsewhere around the world, from Sydney to Madrid, amid days of conflict between Israel and militants in Gaza.
In Paris, the gathering was banned by police and at the request of Interior Minister Gerald Darmanin, with authorities citing fears the protest could turn violent.
Some protesters turned out anyway, waving Palestinian flags and attempting to join up with disparate groups of demonstrators.