China on Thursday warned that if U.S. House Speaker Nancy Pelosi insists on visiting Taiwan, China will take firm and robust measures to resolutely safeguard its sovereignty and territorial integrity, and the U.S. side shall bear all ensuing consequences.

Urging the U.S. side to stick to the one-China principle and the stipulations of the three China-U.S. joint communiques, Foreign Ministry spokesperson Zhao Lijian said Pelosi's planned visit to Taiwan must be canceled immediately.