Russia has warned that it could resume nuclear testing if the United States or other countries conduct nuclear tests, Russia's Permanent Representative to International Organisations in Vienna, Mikhail Ulyanov, said.

Axar.az reports that, speaking in an interview with Kommersant, Ulyanov said the possibility of resuming nuclear tests could not be entirely ruled out.

"Of course, it would be overly optimistic to completely rule out the possibility of a resumption of nuclear testing. However, I am confident that, with a responsible approach from nuclear powers, every opportunity exists to prevent such a scenario. It is important for countries to strictly observe their voluntary national moratoriums," Ulyanov said.

"Russia holds precisely this position, but, as Russian President Vladimir Vladimirovich Putin has stated, if the United States or other countries conduct nuclear tests, our country will also have to take appropriate and adequate retaliatory measures," he said.