Demonstrators took to the streets in several European cities on Saturday in solidarity with the Palestinians.
They did this in response to the worst outbreaks of violence in years between Israel and the Palestinians.
In some cities this led to vandalism and arrests.
Thousands of people walked through Hyde Park in London, saying "liberated Palestine!"
at the Israeli embassy, the organizers of the demonstration in London told Sky News that there were about 100,000 people on the move.
Police said they could not provide an estimate of the number of protesters.
"They have spread over a large area in the city."
In Paris, authorities have banned a court-sponsored demonstration, yet groups took to the streets to express their solidarity with the Palestinians.
The police used tear gas and water cannons to disperse the protesters and to prevent them from walking to the Place de la Bastille.
Some protesters threw stones at the police.
They also set fire to garbage cans, among other things.
Police reported early in the evening that 44 people had been arrested, according to the newspaper
According to the newspaper, demonstrations in several other French cities were quiet.
The police in Lyon did use tear gas against demonstrators.
About 2,500 protesters demonstrated in Madrid.
They walked to Puerta del Sol square in the center of the Spanish capital.
"They are killing us," shouted Amira Sheikh-Ali, a 37-year-old protester of Palestinian descent.
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Anti-Semitic protesters in Germany try to disrupt demonstration
In Germany thousands of people took to the streets.
, 25 demonstrations had been reported.
In Leipzig, anti-Semitic protesters tried to disrupt a pro-Israel demonstration in the early afternoon, the newspaper said.
Permission for three demonstrations had been given in Berlin's Neukölln district, where many people with Arab or Turkish roots live.
The activists there called for a boycott of Israel and threw stones and bottles at the police.
Water cannon deployed in Athens
In Athens about 500 people gathered in front of the Israeli embassy.
During the action, there were some clashes between the police and demonstrators.
The police deployed a water cannon.
In Brussels, according to official police figures, about 3,000 people took part in a rally against the escalation of violence in the Palestinian territories and Israel.
The participants spoke out against, among other things, the Israeli occupation of Palestinian territory.
Six arrests during protests in The Hague
Hundreds of pro-Palestinian demonstrators took to the streets in The Hague and Maastricht on Saturday.
Six people were arrested in the royal city, including someone who had argued with the protesters.
Violence between Israel and the Palestinians flared up a week ago.
This happened after the threat of deportation of families from an Arab neighborhood in East Jerusalem.
Those families have to make way for Jewish settlers.
The military faction of the Palestinian movement Hamas has been bombarding Israel with missiles for days. The Israeli army is carrying out air strikes on the Gaza Strip. Most of the fatalities fall on the Palestinian side.