PARIS — Thousands of pro-Palestinian protesters marched in French cities on Saturday to condemn violence in Gaza, defying a ban imposed after demonstrators marched on two synagogues in Paris last weekend and clashed with riot police.
French President Francois Hollande said he understood emotional responses to the killing of hundreds of Palestinian civilians in the Gaza Strip in a flare-up of hostilities with Israel but would not allow violence to spill over into France.
"That's why I asked the interior minister, after an investigation, to ensure that such protests would not take place," he told journalists during a visit to Chad.
Interior Minister Bernard Cazeneuve justified bans in Paris, the Sarcelles suburb and the Mediterranean city of Nice by saying the security risk was too great, prompting outrage from left-wing and pro-Palestinian groups.
He had asked police in cities to examine security risks city by city and, where necessary, to issue ban orders.
The far-left New Anticapitalist Party, an organizer of last Sunday's rally and the banned one in Paris, urged protesters in Paris to defy the ban, prompting police to issue a warning.
"Those who do not respect the ban, in support of protests or against them, face the risk of being stopped, arrested and handed over to the courts," Paris police said in a statement.
However, large crowds defied the warning and gathered in the capital chanting "Israel, assassin" in front of police barricades. Rallies were also held in more than a dozen other cities, from Lille in the north to Marseille in the South.
"This ban on demonstrations, which was decided at the last minute, actually increases the risk of public disorder," the Greens Party said in a statement. "It's a first in Europe."
Elsewhere in Europe, a man set off a security alert in Geneva when he stopped a tram to retrieve bags that included a book with a radical Islamist image in it, police said, at the same time as some 300 pro-Palestinian protesters gathered in front of the U.N.'s European headquarters.
The Israeli-Palestinian conflict has contributed to growing tensions between France's Muslim and Jewish populations, both of which are the largest in Europe.
In the first three months of 2014 more Jews left France for Israel than at any other time since the Jewish state was created in 1948, with many citing rising anti-Semitism as a factor.
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