The Foreign Ministry vowed on Wednesday to take countermeasures against the United States for its wrongful act that grossly violates the one-China principle and the stipulations of the three joint communiques, saying Washington has to take all responsibility for the consequences.

The ministry said this in a statement published on its official website in response to US Secretary of State Mike Pompeo's statement, in which he congratulated Taiwan's leader Tsai Ing-wen on her inauguration to a second term as "president" of the island, which is an integral part of China.