China urges the U.S. to handle Taiwan-related issues carefully and properly and not to send wrong signals to "Taiwan independence" separatist forces, the Chinese Foreign Ministry said on Friday.

Wang Wenbin, a spokesperson from the ministry, made the remarks at a press conference when he answered a question about U.S. President Joe Biden's comments on China's Taiwan region in a CNN interview on Thursday. 

When asked whether the "U.S. would protect Taiwan if China attacked," Biden said "yes, we have a commitment to do that."

Taiwan is an inalienable part of China's territory, said Wang, adding that Taiwan-related issues are purely China's internal affairs. 

China urges the United States to abide by the one-China principle and the provisions of the three China-U.S. joint communiques, Wang said.