Turkey"s ruling party celebrates victory in the referendum . President Recep Tayyip Erdogan"s supporters have gathered in the center of Istanbul before announcing the preliminary results of the referendum and celebrated victory .

An incident has occurred at the office of the opposition People"s Democratic Party . Supporters of the ruling party have passed along the buildings with celebratory shouts , which led to a fight. The situation calmed down after police"s intervention.

According to the latest data, 51 % of voters support constitutional changes, which include increasing the role of the president, while 49% voted against it.

The opposition does not recognize the results and believes that the Central Election Commission has violated the law, because refused to abolish the ballot , which had no stamp.