Here's what to know about Sunday's run-off vote in Romania's presidential election, pitting hard-right eurosceptic lawmaker George Simion against centrist independent Bucharest mayor Nicusor Dan.

Romanians delivered a resounding anti-establishment message in the first round of the country’s presidential election rerun, propelling hard-right leader George Simion and Bucharest’s independent centrist mayor Nicusor Dan to a high-stakes runoff to be held on May 18.

Liberal campaigners and politicians say social media crackdown to prevent Russian interference has gone too far.