Tens of thousands protested in Romania’s capital against a top court’s decision last month to annul the presidential election after an outsider candidate unexpectedly emerged as the frontrunner.

The cancellation came after state documents showed frontrunner Calin Georgescu benefited from an unfair social-media campaign likely to have been orchestrated by Russia.

TENS of thousands took to the streets of Romania’s capital, Bucharest, on Sunday against a top court’s decision last month to annul the presidential election. The protest comes a month after the Constitutional Court made the unprecedented move to annul the election just two days before a December 8 run-off.

A massive demonstration took place in Bucharest, during which thousands of people demanded a second round of presidential elections. The constitutional court annulled the results of the first round, which triggered the largest protest so far.