Romania's top security body will meet on Thursday to discuss possible risks to the country and its electoral process stemming from social media, the president's office said, after the far-right's shock win in the first round of a presidential ballot.

Calin Georgescu, who had been widely dismissed as a fringe candidate, won the most votes on Sunday with 22.9 percent. He will face a more centrist opponent in the second round on Dec. 8.

Calin Georgescu’s surprise victory means the current pro-West prime minister will not make it to the election runoff.

A pro-Russia far-right candidate took a surprise lead Monday in Romania's presidential election, knocking the EU-leaning premier out of the race that will be decided in a December run off.