Anti-Israel protests continued during the night in Turkey over the raid on the humanitarian convoy.
Thousands gathered outside Israel’s consulate in Istanbul, with some protesters trying to break through police cordons.
Relations between Ankara and Tel Aviv have reached crisis point – the largely Muslim country has in the past been a vital ally to Israel but the policy towards the Palestinians has gradually soured relations.
This latest incident has been described as state terrorism by Turkey’s prime minister.
Earlier there had been demonstrations in cities across Europe including Paris, Stockholm, Rome and Athens, where police in some cases used teargas against protesters.
Most European countries have summoned Israeli diplomats to condemn what many described as a disproportionate use of force against the aid flotilla.
In London, too, there were angry scenes.
More than a thousand pro-Palestinian demonstrators headed for the Israeli embassy, waving placards saying “Disarm Israel” and accusing the country of “war crimes”.