Europe

Turkey's premier warns opposition against street protests

  • A supporter of the 'no' vote, holds a Turkish flag during a protest regarding Sunday's referendum outcome, on the Aegean Sea city of Izmir, Turkey, Tuesday, April 18, 2017.  Turkey's main opposition party has filed a formal request seeking Sunday's referendum to be annulled because of alleged voting irregularities. (AP Photo/Emre Tazegul)

    A supporter of the 'no' vote, holds a Turkish flag during a protest regarding Sunday's referendum outcome, on the Aegean Sea city of Izmir, Turkey, Tuesday, April 18, 2017. Turkey's main opposition party has filed a formal request seeking Sunday's referendum to be annulled because of alleged voting irregularities. (AP Photo/Emre Tazegul)  (The Associated Press)

  • Supporters of the 'no' vote, one, holding a banner of modern Turkey's founder Mustafa Kemal Ataturk, centre, chant slogans during a protest against the referendum outcome, in Istanbul, Tuesday, April 18, 2017. Hundreds of people are queuing in front of Turkey's election board in capital Ankara to submit petitions requesting that the electoral authority reverse a controversial decision during Sunday's referendum to accept ballots without official stamps, as required by Turkish law. (AP Photo/Petros Karadjias)

    Supporters of the 'no' vote, one, holding a banner of modern Turkey's founder Mustafa Kemal Ataturk, centre, chant slogans during a protest against the referendum outcome, in Istanbul, Tuesday, April 18, 2017. Hundreds of people are queuing in front of Turkey's election board in capital Ankara to submit petitions requesting that the electoral authority reverse a controversial decision during Sunday's referendum to accept ballots without official stamps, as required by Turkish law. (AP Photo/Petros Karadjias)  (The Associated Press)

  • Supporters of the 'no' vote, chant slogans during a protest against the referendum outcome, on the Aegean Sea city of Izmir, Turkey, Tuesday, April 18, 2017. Turkey's main opposition party has filed a formal request seeking Sunday's referendum to be annulled because of voting irregularities. (AP Photo/Emre Tazegul)

    Supporters of the 'no' vote, chant slogans during a protest against the referendum outcome, on the Aegean Sea city of Izmir, Turkey, Tuesday, April 18, 2017. Turkey's main opposition party has filed a formal request seeking Sunday's referendum to be annulled because of voting irregularities. (AP Photo/Emre Tazegul)  (The Associated Press)

Turkey's prime minister says opposition parties have the right to file objections to the outcome of a recent referendum on expanding presidential powers, but warned that calling for street protests was unacceptable.

Binali Yildirim said Wednesday the electoral board would rule on the main opposition Republican People's Party's request for the referendum's annulment. Opposition parties have complained of a series of irregularities, particularly an electoral board decision to accept ballots without official stamps, as required by Turkish law.

Yildirim said the "the path to seek rights" should be limited to legal objections and urged the opposition to accept the vote's outcome.

Thousands have protested in Istanbul and Ankara since Sunday's referendum, which has set into motion the transformation of Turkey's system of government from a parliamentary into a presidential one.