Romania's coalition government approved on Thursday a re-run of a two-round presidential election on May 4 and May 18 as previously agreed, and tightened campaign rules for big social media platforms including TikTok.

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

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.