'Watch your tongue': Dmitry Medvedev warns West economic wars often become real ones

Dmitry Medvedev (Yekaterina Shtukina/AP)

A senior Russian official has launched a new stark warning over its sanctions against his country for its war in Ukraine.

Dmitry Medvedev, a deputy head of Russia’s Security Council, was retorting to a comment by French finance minister Bruno Le Maire on Tuesday that the European Union was going to unleash an all-out economic and financial war against Russia.