Trump sent a letter to Tehran proposing negotiations on its nuclear program or threatening military action. But he hasn’t waited for a reply to bomb Iran-allied Houthi rebels.

China, Iran and Russia called for diplomacy over “pressure and threats” and an end to “all illegal unilateral sanctions” following talks on Tehran’s nuclear program Friday in Beijing, Chinese state media said.

Iran’s Supreme Leader Ayatollah Ali Khamenei said his country is not pursuing nuclear weapons and dismissed US President Donald Trump’s calls for negotiations as a “trick.”