In this undated file photo, Ma Xiaoguang, spokesperson for the Taiwan Affairs Office of the State Council, takes a question during a press conference in Beijing, China. (CHEN YEHUA / XINHUA)

BEIJING - A Chinese mainland spokesperson on Thursday warned Taiwan's Democratic Progressive Party (DPP) authority not to indulge in presumptuous self-conceit and miscalculate the situation.

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Further moves to create tensions and turbulence across the Taiwan Straits will bring the island to a treacherous situation, said Ma Xiaoguang, spokesperson for the State Council Taiwan Affairs Office, in response to remarks on cross-Straits relations by Tsai Ing-wen in the BBC interview.

Taiwan has never been a country but a sacred and inalienable part of China, Ma said, warning that attempts to challenge the iron-clad fact will only end in disgrace and ruin.

"We remain as firm as a rock in our resolve to safeguard China's sovereignty and territorial integrity and will never allow anyone, any organization, or any political party, at any time or in any form, to separate any part of Chinese territory from China," said Ma.

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