A third Russian spy faces charges of attempted murder over his alleged involvement in the Salisbury Novichok poisonings. Denis Sergeev, who used the alias Sergey Fedotov while in the UK, faces a string of charges that include trying to kill former Russian spy Sergei Skripal, his daughter Yulia and ex-police officer Nick Bailey. The Skripals were left fighting for their lives in March 2018, when members of a Russian military intelligence squad are believed to have smeared Novichok on Mr Skripal's door. Security sources believe Denis Sergeev was the on-the-ground commander in the attack.