French police have banned a pro-Palestinian demonstration in Paris after protesters last weekend tried to storm two synagogues in the capital during a similar rally.
Police said in a statement on Friday they could not guarantee a safe march "due to heightened tensions" fuelled by the Israeli-Palestinian conflict.
President Francois Hollande, during a visit to Niger on Friday, said the march would have been a "risk to public order".
"We cannot allow the conflict to be imported into France. We cannot have demonstrators (from opposite sides) facing each other down, with a risk to public order," he said.
The organisers of the march, meanwhile, said they were taking legal action to overturn the ban but that it would be defied regardless of the outcome.
"The escalation in Gaza has caused a lot of anger and it will express itself," said Alain Pojolat of the New Anti-Capitalist Party, an extreme left group and one of the organisers of the rally.
"Whether the demonstration is authorised or not, there will be hundreds or even thousands of youths who will converge on Barbes on Saturday," he said, referring to the district where the rally was due to begin.