The New York Times reported last week that some unidentified Western officials had suggested US President Joe Biden could give Ukraine nuclear weapons before he leaves office.
Peskov told reporters that these are absolutely irresponsible arguments of people who do not feel a shred of responsibility when making such statements.
Earlier, senior Russian security official Dmitry Medvedev said that if the West supplied nuclear weapons to Ukraine then Moscow could consider such a transfer to be tantamount to an attack on Russia, providing grounds for a nuclear response.