U.S. Secretary of State Marco Rubio is wrapping his up his second and final day at a Southeast Asian security conference with a high-stakes meeting with his Chinese counterpart as tensions grow over issues from trade to security and China’s support for Russia’s war in Ukraine.

Secretary of State Marco Rubio met with Russian Foreign Minister Sergey Lavrov in Malaysia Thursday at a meeting of the Association of Southeast Asian Nations. The two discussed the Russia-Ukraine war.

The Foreign Ministers of the US and Russia participate in the ASEAN Summit. Malaysia has been the setting for a meeting on Thursday between the Secretary of State of the United States, Marco Rubio, and the Russian Minister of Foreign Affairs,