Moldovans voted by a razor-thin majority in favor of securing the country’s path toward European Union membership, electoral data showed Monday, after the pro-Western president accused foreign interference and “criminal groups” of trying to undermine the vote in the former Soviet republic.

Moldova voted in favor of adding a path to the European Union to its constitution, and gave the incumbent president the most votes in elections Sunday, but neither result was the win leaders wanted.

Moldova has narrowly backed a move for closer ties to the EU in a referendum, electoral authorities say. The yes campaign won the vote with a margin of less than a per cent - just a few thousand votes. The referendum asked voters to choose whether to enshrine a path towards European Union membership in the country's constitution.