Thousands have taken to the streets of Istanbul to protest against the outcome of the referendum in Turkey.

Some chanting 'thief, Erdogan' and 'no to the presidency' showed their anger at the Yes victory to change the constitution and grant sweeping powers to the president.

Turkey's main opposition parties have rejected the result and called for the vote to be annulled.

"I believe there were a lot of irregular and illegal incidents," said one No voter at the protest. "We heard a lot of news. …


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