Rosneft, Russia's biggest oil producer, on Sunday slammed European Union sanctions on India's Nayara Energy refinery as unjustified and illegal, saying the restrictions directly threatened India's energy security.

Russian oil sanctions by the European Union could dent India’s $15 billion fuel exports, the Global Trade Research Initiative (GTRI) has warned. The EU's 27 member states have introduced their 18th sanctions package against Russia,

The latest sanctions by EU included an import ban on refined petroleum products made from Russian crude oil and coming from any third country.