BEIJING - China firmly opposes the US arrangement for Tsai Ing-wen's "transit" trip to the United States and a meeting between her and US House Speaker Kevin McCarthy, the third highest-ranking official of the US government, a Foreign Ministry spokeswoman said Tuesday.

Spokeswoman Mao Ning made the remarks at a daily news briefing, noting that it seriously contravenes the one-China principle and provisions in the three China-US joint communiques and gravely undermines China's sovereignty and territorial integrity.

"We urge the United States to abide by the one-China principle and provisions in the three China-US joint communiques, not to allow Tsai Ing-wen's 'transit' trip to the United States, and not to arrange for any meeting or contact between Tsai and US political figures and officials," Mao said.

The Chinese side will closely monitor the situation as it develops and resolutely defend the country's sovereignty and territorial integrity, the spokeswoman said.