- The White House has said Russia "is responsible" for using a nerve agent to attack a former double agent in the UK.
- While the UK blamed Russia earlier this week, US officials had not been clear on the matter. The White House initially declined to assign blame, but the US Secretary of State Rex Tillerson blamed Russia and was fired the following day.
- Russia has assassinated people on UK soil in the past.
The White House has blamed Russia for the poisoning of a former double agent and his daughter in the UK on March 4.