The more than 100-day conflict involving the United States, Israel and Iran underscored the importance of upholding international rules, respecting state sovereignty, embracing a new vision of security and understanding the changing nature of warfare, China's top diplomat Wang Yi said on Tuesday.

The Chinese foreign minister made the remarks in New Delhi, the capital of India, at the 16th Meeting of BRICS National Security Advisors and High Representatives on National Security, following the recent first-phase memorandum of understanding reached by the US and Iran.

The BRICS cooperation mechanism was formally launched in 2009, and now has 11 formal members after its latest expansion.

Addressing the meeting, Wang said that any settlement of international or regional hotspot issues must comply with international rules, adding that the law of the jungle may prevail for a time, but cannot be sustained.

Territorial integrity must not be violated, and no country's internal affairs should be subject to interference, he said, calling this the most basic moral baseline in international relations.