China firmly opposes official interactions between the United States and China's Taiwan region, and has lodged stern representations with the US side, a Chinese Foreign Ministry spokesperson said on Monday.

Spokesperson Mao Ning made the remarks at a regular press briefing in response to the recent visit to Taiwan region by four US senators, urging the United States to take concrete actions to uphold the overall interests of China-US relations and peace and stability across the Taiwan Strait.

(Cover: File photo of Chinese Foreign Ministry spokesperson Mao Ning.)