The UK government is poised to ask Russian Federation to extradite two people suspected of carrying out the nerve agent attack against Sergei Skripal and his daughter Yulia in Salisbury.
Other newspapers, including the Guardian and the Daily Telegraph also reported on the extradition moves.
Citing government and security sources, the newspaper says the two individuals are believed to have exposed Sergei Skripal and his daughter, Yulia, to the nerve agent in Salisbury in March. The Kremlin has repeatedly denied any involvement in the poisonings, but United Kingdom intelligence chiefs have continued to accuse the Russian government and Russian President Vladimir Putin himself of signing off on the attacks.
The Guardian reported that an investigation by hundreds of British police and intelligence officers pieced together the movements of the two Russians, from their entry into Britain through their departure.
The Crown Prosecution Service prepared the extradition request and is ready to file, according to the Guardian.
The Russian Embassy said it had not received an official request.
Any extradition request is likely to be rejected by Russian Federation. The Russian constitution prevents the extradition of Russian citizens to another state.
It comes after Yahoo revealed last week that the UK Government had failed to make any contact with the Russian government or its agencies since the the murder of a British woman who was poisoned on UK soil with the deadly Novichok nerve agent more than four weeks ago.
Russian Federation retaliated by expelling an equal number of Western diplomats. Moscow has repeatedly denied any involvement and accused the British intelligence agencies of staging the attack to stoke anti-Russian hysteria.
Police believe the Novichok was smeared on the door of Sergei Skripal's house and perhaps discarded in a container that Sturgess's boyfriend Charlie Rowley then picked up.
Rowley said he had found a perfume bottle that he gave to Sturgess, which she sprayed on her wrists.