urgent meeting of the UN Security Council to discuss the poisoning of Sergei Skripal and Yulia Skripal on 4 March. Theresa May announces that 23 Russian diplomats will be expelled from the UK after Russia fails to respond to claims of involvement. 15 March – Following the events of 4 March, Theresa May visits Salisbury after the nerve agent attack on Sergei and Yulia Skripal. 17–19 March – Heavy snow affects much of the UK. It is dubbed the "mini beast from the east"; a sequel to the previous cold wave at the start of the month. On 17 March, amber weather warnings are issued for north-west England, Yorkshire, the Midlands, London and south-east England. On 18 March, they are issued for south-west England, south-east and mid-Wales and the West Midlands. Dozens of vehicles were stuck overnight on the A30 in Devon whilst two weather warnings are still in place for much of the UK after wintry showers disrupted many parts of Britain. 17 March – A 21-year-old man is arrested and charged with attempted murder after driving a Suzuki Vitara into the Blake's nightclub at Gravesend, Kent, injuring thirteen people. 18–19 March – Boris Johnson dismisses claims from Russian EU ambassador, Vladimir Chizhov, who said that Porton Down may have been the source of the nerve agent. It is reported that experts from the Organisation for the Prohibition of Chemical Weapons will arrive on 19 March to test samples of the substance. 18 March – TV presenter Ant McPartlin is arrested for drink driving after a car crash in Richmond, West London. 19 March The Gambling Commission recommends that fixed odds betting terminals should be cut to £30 or less from £100. Micro Focus shares fell 55% to 849p after they warn of a sharp fall in revenue and its chief executive, Chris Hsu resigned. Channel 4 airs a documentary about Cambridge Analytica, the data analysis company that worked on the Leave.EU campaign in favour of Brexit, and for Donald Trump's presidential campaign. Undercover reporters, talking to executives from the firm, discover the use of bribes, honey traps, fake news campaigns and operations with ex-spies to swing election campaigns around the world. An emergency court order is requested to raid the Cambridge Analytica offices. 20 March The board of Cambridge Analytica suspends CEO Alexander Nix with immediate effect, pending a full and independent investigation. 21 March – Following eight