Romania's top court on Friday postponed a decision on whether to annul the first round of a presidential election until Dec. 2, after a shock result caused suspicions of interference in the campaign.

Romania’s top court ordered a vote recount in the first round of the presidential election, it said on Thursday, in a ruling observers said risked tarnishing the credibility of state institutions ahead of two more ballots.

Romanian authorities began recounting ballots after an election that shook the country’s political establishment with a victory for a little-known ultranationalist candidate as the country’s top court weighed accusations of outside meddling.