The Kremlin says it will review any British request to interview the two men London suspects of trying to murder a former spy in strict accordance with Russian law.
But it says it has not received any such request.
Britain has charged the two men, who appeared on Russian TV on Thursday, with attempting to murder former Russian spy Sergei Skripal and his daughter Yulia by spraying a chemical weapon on Skripal's door in March.
When asked on a conference call if Moscow would agree to let British police question the men in Russia, Kremlin spokesman Dmitry Peskov said Moscow would assess that.
'Without doubt if such a request is made it will be looked at by the Russian side in strict accordance with Russian law.'
Peskov underlined that the Kremlin denied any Russian state involvement in the poisoning.