"It [the military intervention scenario] persists. Certainly," Lu told French broadcaster BFMTV when asked about the possibility of such a scenario.
He noted that a possible military intervention would not target the people of Taiwan, but might be necessary to "reassure or warn separatist forces, which seek Taiwan's independence, as well as foreign anti-Chinese forces."
The ambassador added that it was the United States, not China, that bore the responsibility for the heightening tensions in the region, with Beijing only reacting to Washington's provocation.
Earlier in the day, Chinese Foreign Ministry spokeswoman Hua Chunying said that China firmly opposes separatism and interference by outside forces in the Taiwan issue and will never allow the forces advocating Taiwan's independence to take action.
US House Speaker Nancy Pelosi arrived in Taiwan on Tuesday as part of a congressional delegation's tour of the Indo-Pacific region, drawing a major outrage from the Chinese government. Pelosi met with Taiwan's leader, Tsai Ing-wen, and then left the island. She said the visit should be viewed as "a strong statement that America stands with Taiwan" at a time when the US continues to uphold democracy as opposed to autocracy in the region and around the world.
China claims sovereignty over the self-governed island and has repeatedly warned that by pursuing the trip Washington would jeopardize US-China bilateral relations. The Chinese Foreign Ministry said on Tuesday that Pelosi’s trip to Taiwan is a huge political provocation, adding that both US and Taiwan would bear responsibility for the consequences of Pelosi’s visit to the Island.