More than 500 Turkish Londoners and supporters, including many families, gathered opposite Downing Street in central London on Sunday afternoon of last week.
They were there to show solidarity with protesters in Taksim Square.
There were demands for the resignation of prime minister Erdogan, and calls for the media to report the repression.
There were further protests in London on Monday evening of this week. Thousands of people also rallied at the Turkish embassy in Athens.
They chanted “Turkey, Greece, solidarity” in contrast to the continuing hostility between the rulers of the two countries.
There were also protests in Berlin, Amsterdam, New York, Chicago and Vancouver—and more than 200 protests in Turkey itself.