Pro-Palestinian demonstrators marched through the streets of Paris over the weekend to rally against Israel's invasion of Gaza, defying a ban on pro-Palestinian protests. Demonstrations took place in more than a dozen French cities, including Lille, Nice and Marseilles, according to Reuters. French President Francois Hollande endorsed his government's ban on the protests, telling journalists "We can’t allow the conflict to come to France." However, French Arabs decried the ban as a violation of their freedom of speech. "We have a French government that is depriving a group of citizens of its democratic rights,” a protest organizer told Al Jazeera. Israel's ground offensive and the deaths of Gazan children have also inflamed public opinion globally, sparking demonstrations worldwide. Thousands of people protested in London on Saturday, demanding an end to the violence, as U.S. President Barack Obama and United Kingdom Prime Minister David Cameron discussed the crisis over the phone, The Guardian reported. For his part, United Nations Secretary-General Ban Ki-moon is heading to the Middle East to help end the conflict. In Santiago, Chile, 5,000 protestors surrounded the Israeli embassy to protest the invasion, according to Al Arabiya. Protestors glued photos of dead Gazan children to the building's walls, the news site said. Public outrage shows no signs of diminishing, as Israel prepares to expand its ground invasion.