The British government recently said Scotland Yard detectives had identified Mr Petrov and Ruslan Boshirov as suspects, who they said were from Russia's foreign military intelligence agency, the GRU.
Alexander Petrov and Ruslan Boshirov (who have to be the two Russians with the most Russian names ever) were accused of the Sergei Skripal assassination attempt.
The elder Skripal, who was a Russian intelligence agent that switched sides, as well as his daughter, survived the poisoning and now live in an undisclosed location. "The government has exposed the role of the GRU, its operatives and its methods, this position is supported by our global allies", the spokesman told reporters.
Russia's President Vladimir Putin at the plenary session titled "The Far East: Expanding the Range of Possibilities" as part of the 2018 Eastern Economic Forum at the Far Eastern Federal University on Russky Island in Vladivostok, Sept. 12, 2018.
Kremlin spokesman Dmitry Peskov said the president has not communicated with the men themselves since they were accused of poisoning the Skripals.
He added, "There is nothing special or criminal about it, I can assure you".
Russian Federation has repeatedly denied any involvement in the incidents.
"I hope they will turn up themselves and tell about themselves", he said. Russian Federation kicked out a similar number of those countries' envoys.
So this was not a rogue operation.
Theresa May told parliament earlier this month that the attack "was nearly certainly also approved outside the GRU at a senior level of the Russian state".
Petrov and Boshirov flew into Gatwick Airport on an Aeroflot flight from Moscow on March 2nd. One of them, a 44-year-old woman, later died.
It is alleged they then daubed the toxin from a perfume bottle on the doorknob of Skripal's home.
On March 4th, Novichok was placed on the front door of the Skripal house.
Russian state TV channel Rossiya-24 said the suspect named as Alexander Petrov would maybe speak next week.
The Skripals spent weeks in hospital in a critical condition after the poisoning. Mr Rowley was later discharged.
Prosecutors deem it futile to apply to Russian Federation for the extradition of the two men, since Moscow does not extradite its own citizens, but a European Arrest Warrant has been obtained and the authorities are also seeking the assistance of Interpol.