Pauline Neville-Jones says other countries will join Britain in issuing a response to Russia
Rudd said Skripal and his daughter remain in a 'very serious' condition
Roy Ramm says it's possible that Skripal wasn't the primary target
Annie Machon says 'there are too many known unknowns' and 'perhaps the finger of blame is being made to point at Putin'
Rifkind said it's too early to say whether Putin was directly involved - but, if the Russian government's involvement is proven, we must think long and hard about whether we can maintain normal diplomatic relations with the country
The former Russian spy, his daughter and the first police officer on the scene are all critically ill in hospital
Politics expert Anthony Glees says we must be careful about blaming Russia - but, if their involvement is proven, we must come down hard
Chris Williamson says the BBC is just as bad at RT because 'it invaded Iraq.'
Sergei Skripal and his daughter Yulia are fighting for their lives in hospital
Tom Tugenhadt suggests Vladimir Putin is nothing more than a mafia don and we need to be vigilant against him
Blunt says Russia 'has a history of murdering its enemies abroad', but it might be tough to punish the Kremlin for alleged Sergei Skripal murder
Former Russian spy Sergei Skripal is in a critical condition in hospital but circumstances around a potential attack are unclear
Julia says the poisoning of double agent Sergei Skripal is only to be expected
The 66-year-old man was found alongside a women in her 30s near a shopping centre