The U.S. space agency has hurt the feelings of the Asian country’s 1.4 billion people with the reference on its website, Zhu Fenglian, a spokeswoman for the Beijing office that handles matters related to the democratically ruled island, was quoted as saying by Bloomberg.

The space agency needs to “correct its mistake as soon as possible,” Zhu said at a regular press briefing Wednesday in Beijing.

A commentary published by People.cn on Monday described the incident as “unforgivable.” The website is run by the People’s Daily, the Communist Party mouthpiece, reports Bloomberg.

Relationship between China and the US has touched new low points in recent times over numerous issues including COVID-19.

Interestingly, Taiwan sees itself as an independent nation. However, China considers it as a breakaway region.