FILE PHOTO: Turkish President Recep Tayyip Erdogan arrives at a news conference in Istanbul, Turkey, April 16, 2017. REUTERS/Murad Sezer/File Photo
ANKARA (Reuters) - Turkey's main opposition party said it filed a court appeal on Friday against a decision by electoral authorities to accept unstamped ballot papers in the tightly contested referendum granting President Tayyip Erdogan wide new powers.
Preliminary referendum results gave a narrow 51.4 percent approval for the biggest overhaul of Turkey's political system since the modern state was established nearly a century ago, but opposition parties said the poll was deeply flawed.
