The organizers in the two Spanish cities mentioned even more: 300,000 in Barcelona and 400,000 in Madrid.
Among the demonstrators in Barcelona, there were Palestinian flags and signs with messages such as "Stop the genocide" and "Keep your hands off the flotilla", referring to the Global Sumud Flotilla activist convoy.
How is it possible that we are witnessing a genocide live after what we experienced in the 1940s? Now no one can say that they did not know what was happening, said demonstrator María Jesús Parra to AP.
Protests were also organized in, among other places, Paris, Rome, Lisbon and Athens.
According to the police, 250,000 people protested in the Italian capital, while the organizers claimed one million participants.
There, people, wearing Palestinian scarves, chanted "We are all Palestinians" and "Free Palestine".
The Italian organizers had urged participants to only have Palestinian flags. But some waved flags with tributes to the terrorist-listed Hamas and Hezbollah, reports the Italian public service company Rai.
The police in London report that at least 355 people have been arrested at a gathering in support of the banned group Palestine Action.
