The US has already imposed sanctions on three global leaders — Kim Jong-un of North Korea, Robert Mugabe of Zimbabwe, and Bashar al Assad of Syria. Previously sanctioned leaders who are now dead include Saddam Hussein of Iraq and Muammar Gaddafi of Libya.
The US Treasury department announced on Thursday that it will fine global oil company ExxonMobil $2m for violating Ukraine-related sanctions in May 2014.
Russia has lifted a ban on imports of Turkish food, but will continue to limit imports of Turkish tomatoes to help its own producers of sauces and juices.
The joint plan between the US and the UK to pile the pressure on Russia has fallen apart after the G7 group of industrialised nations failed to back the bid.
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