“A Turkish mob, most of whom had been trucked into the city in advance, assaulted Istanbul's Greek community for nine hours. Although the mob did not explicitly call for Greeks to be killed, over a dozen people died during or after the attacks as a result of beatings and arson. Armenians and Jews were also harmed.[7] The police remained mostly ineffective, and the violence continued until the government declared martial law in İstanbul and called in the army to put down the riots.[8]
“The pogrom greatly accelerated emigration of ethnic Greeks from Turkey, and the Istanbul region in particular. The Greek population of Turkey declined from 119,822 in 1927,[9] to about 7,000 in 1978.[citation needed] In Istanbul alone, the Greek speaking population decreased from 65,108 to 49,081 between 1955 and 1960.[9] The 2008 figures released by the Turkish Foreign Ministry placed the number of Turkish citizens of Greek descent at 3,000–4,000;[10] while according to the Human Rights Watch (2006) their number was estimated to be 2,500.”*
-----------------------------------------/
*https://en.wikipedia.org/wiki/Istanbul_pogrom