What the sanctions on Roman Abramovich and six other Russian oligarchs entail

Roman Abramovich will not be able to travel to the UK and can have his assets seized as part of sanctions placed on the Chelsea FC owner (Adam Davy/PA)

The UK Government has announced sanctions strike on seven Russian oligarchs, including Chelsea football club owner Roman Abramovich and billionaire Oleg Deripaska, owner of Aughinish Alumina in Limerick.

What do the sanctions entail and what do they mean for the individuals involved?