It’s not especially new, but here are some warnings about nuclear war from Pakistani PM Imran Khan in his 9/25 speech to the UNGA:

In order to divert attention from its illegal actions and atrocities in Indian Occupied Jammu and Kashmir, India is playing a dangerous game of upping the military ante against Pakistan in a nuclearized environment.

and

There will be no durable peace and stability in South Asia until the Jammu and Kashmir dispute is resolved on the basis of international legitimacy. Kashmir has been rightly described as a “nuclear flash point”.

Parenthetically, I don’t think I’ve before seen world leader quote Noam Chomsky:

According to respected Professor Noam Chomsky, mankind is at even a greater risk than it was before the 1st and 2nd World Wars in the last century, and this is because of the increased threat of nuclear war, Climate Change, and sadly the rise of authoritarian regimes.