Turkey’s communications authority blocked access to the social media platform Instagram on Friday, the latest instance of a clampdown on websites in the country. The Information and Communication Technologies Authority, which regulates the internet, announced the decision early on Friday but did not provide a reason. The Yeni Safak newspaper, which is close to the government, and other media said access was blocked in response to Instagram removing posts by Turkish users that expressed condolences over the killing of Hamas political leader Ismail Haniyeh. “Sanctions for Instagram’s blackout po…