China imposes sanctions on US organizations and figures over Taiwan relations.

China has imposed sanctions on the Ronald Reagan Presidential Library and other organizations in retaliation for the US House speaker's meeting with the Taiwanese president, Tsai Ing-wen. The move comes amid growing tensions between the US and China over Taiwan, which Beijing claims as part of its territory. The Chinese government has warned that contact with foreign officials will encourage Taiwanese who want formal independence, a step Beijing says would lead to war. The US government has no official relations with Taiwan but maintains extensive informal and commercial ties.