Iran warns about the threat that is posed to the region by the "occupying and criminal" Israeli regime.

North Korean leader Kim Jong-un has firmly warned to respond to US threats with nuclear weapons amid Washington’s ramped-up military activities in the region, including joint exercises with Seoul and Tokyo.

Russia has rejected claims that it is planning to use tactical nuclear weapons in Ukraine, tacitly acknowledging that such a scenario would trigger nuclear war, which it says "should never be unleashed."

The Group of Seven warns Russia against, what it calls, potential use of non-conventional weapons in Ukraine.

Palestinian foreign minister Riyad al-Maliki says Israel must join the Nuclear Non-Proliferation Treaty (NPT) and eliminate its stockpile of nuclear arms.

Russia slams rapid deployment of modernized US B61 tactical nuclear weapons at NATO bases in Europe, saying the move would lower the "nuclear threshold."

The Russian president warns the world is facing the most dangerous decade since World War II.