NATO Secretary General Jens Stoltenberg has warned of a further escalation of the situation in Ukraine in the coming weeks.

In an interview with Welt am Sonntag newspaper of Germany, he said that their message was clear: The use of nuclear weapons will lead to the fact that there will be only losers on all sides, and that a nuclear war cannot be won.

He noted that NATO does not have any data that indicate that the Russian nuclear arsenal has been brought to a higher level of readiness.

At the same time, Stoltenberg spoke in favor of further arms supplies to Ukraine.