The UK must provide fingerprints of the suspects in the Skripal case to Interpol, Russian Foreign Ministry Spokeswoman Maria Zakharova stated on Wednesday on the Rossiya-1 channel.

"We should start the conversation with facts, that is, with fingerprints. If according to the British side, these people have come from Russia, they must have received British visas, so, please, "fingers at the table". Because none of us can work without Interpol here," the diplomat stressed.

Earlier, she stated that British Ambassador to Moscow Laurie Bristow declined to provide the fingerprints to the Russian Foreign Ministry.

May told the UK parliament on Wednesday that the Crown Prosecution Service was ready to charge two Russian citizens - Alexander Petrov and Ruslan Boshirov - with an attempt on the lives of Sergei Skripal and his daughter Yulia. Reports also stated that the British police would go ahead with inquiries into the Salisbury and Amesbury poisonings as parts of one case. May added that the operation was "approved at a senior level of the Russian state."

On March 4, former GRU Colonel Sergei Skripal, convicted in Russia of spying for Britain, and his daughter Yulia, were affected by a nerve gas of the Novichok class in Salisbury. The British government claimed that Russia might have been involved in the incident. Moscow strongly dismissed all speculations on that score, adding that programs for developing this substance had never existed in the Soviet Union or Russia.

Britain’s military chemical laboratory at Porton down has failed to identify the origin of the substance that poisoned the Skripals.