BEIJING, Sept. 2 (Xinhua) -- A Chinese spokesperson on Wednesday condemned Czech senate speaker Milos Vystrcil for visiting Taiwan, noting it as a "despicable" move that deliberately interferes in China's internal affairs.

Hu Zhaoming, spokesperson for the International Department of the Communist Party of China Central Committee, said Vystrcil's move has severely violated the political basis for China-Czech relations.

Hu stressed that Taiwan is an inalienable part of China's territory, and the one-China principle has been universally recognized in the international community.

The sound development of China-Czech relations in recent years was based on the adherence to the one-China principle, Hu said, urging Vystrcil and his like to immediately correct their mistakes, stop challenging the one-China principle on the Taiwan question and stop undermining the political foundation of friendly cooperation between the two countries.

The spokesperson also called on the government and major political parties in the Czech Republic to firmly oppose a handful of politicians' sinister political attempt and take resolute and concrete measures to eliminate the negative impact of their erroneous practice for the sake of a stable and sustained China-Czech relationship.