Photo taken on March 31, 2019 shows ballots of Turkey's local election. (Xinhua)

ANKARA, May 6 (Xinhua) -- Turkey's Supreme Election Council on Monday cancelled the result of Istanbul local elections on the request of the ruling party, state-run Anadolu Agency reported.

After over five hours of debates and evaluations, judges of the top electoral board decided on a majority of seven to four to re-hold the elections in the summer, Anadolu said.

The main opposition Republican People's Party won control of the capital Ankara, and Istanbul, the country's biggest city, in nationwide local elections on March 31.

The ruling Justice and Development Party has called for the results in Istanbul to be annulled, citing what they say "irregularities."

The rulings of the council are final and cannot be taken to a higher court.