China, which has held off on congratulating U.S. presidential election winner Joe Biden even as leaders of other countries have done so, said Monday it would follow custom in responding to the result.

Democrat Biden clinched enough states to win the presidency but incumbent President Donald Trump has not conceded and is making legal challenges to the outcome of the Nov. 3 election.

"We noticed that Mr. Biden has declared election victory," foreign ministry spokesman Wang Wenbin told a daily media briefing. "We understand that the U.S. presidential election result will be determined following U.S. law and procedures."