China expressed strong indignation and firm opposition on Wednesday to the passage of a Xinjiang-related bill by the United States House of Representatives, urging Washington to stop pushing the bill to become law.

China will respond further if necessary, Foreign Ministry spokeswoman Hua Chunying said in an online statement.

The Uygur Intervention and Global Humanitarian Unified Response Act of 2019 smeared the human rights situation in Xinjiang as well as China's efforts to crack down on extremism and terrorism, Hua said.

China urged the US to stop using Xinjiang-related issues to interfere in China's internal affairs, she said. She added that what Xinjiang faces is not about ethnicity, religion or human rights. Rather, it is about fighting violence, terrorism and separatism.