'Ex-Russian spy' critically ill in UK after suspected exposure to unknown substance

A man in hospital in the UK after he was believed to have been exposed to an unknown substance is a former Russian spy, it is understood.

The BBC reported Sergei Skripal, 66, is critically ill along with a woman, believed to be known to him, after they were found unconscious on a bench in a shopping centre in Salisbury, Wiltshire.