Mohammad Safa, a senior United Nations diplomat, has resigned warning of a potential nuclear strike risk involving Iran. In a post and open letter shared on social media platform X on Monday, he alleged that the UN is preparing for a situation that could lead to a nuclear attack on Iran. Safa has served as executive director of the international organization Patriotic Vision since 2013, which holds special consultative status with the UN Economic and Social Council, and became its permanent representative to the UN in 2016.

Safa blamed an influential lobby within the UN’s top leadership for his resignation and criticized what he described as a pro-war stance. He emphasized that Tehran, home to nearly 10 million people, is not an empty city and questioned the global response if similar attacks occurred in major Western capitals. He said he resigned to avoid complicity in any crimes against humanity and to warn the world against a potential “nuclear winter.”

The UN has not yet issued any official response to Safa’s resignation or his allegations.