President Joe Biden on Wednesday publicly warned Israel for the first time that the U.S. would stop supplying weapons if Israeli forces make a major invasion of Rafah, a refugee-packed city in southern Gaza.

Chinese President Xi Jinping's trip to the Western Balkan state strengthens the so-called steel friendship that has developed between Beijing and Belgrade. In Serbia, China is seen as the strongest ally after Russia.

Another high-ranking official has stepped down during continued scrutiny of corruption. That has led to questions about how the political instability could affect the ruling Communist Party.