China's military began a second day of drills around Taiwan on Wednesday and for the first time gave them a code name, Strait Thunder-2025A.
They said that they were focused on honing the ability to blockade the island and make precision strikes, reports Reuters.
The exercises follow a rise in Chinese rhetoric against Taiwan President Lai Ching-te, who China called a "parasite" on Tuesday, and come on the heels of U.S. Defense Secretary Pete Hegseth's Asia visit, during which he repeatedly criticised Beijing.
China, which views democratically governed Taiwan as its own territory, has repeatedly denounced Lai as a "separatist".
Lai, who won election and took office last year, rejects Beijing's sovereignty claims and says only Taiwan's people can decide their future.
China's Eastern Theatre Command said the drills were taking place in the middle and southern areas of the Taiwan Strait. Some of Taiwan's outlying islands are just a few kilometres from China.
"The exercises focus on subjects of identification and verification, warning and expulsion, and interception and detention so as to test the troops' capabilities of area regulation and control, joint blockade and control, and precision strikes on key targets," it said in a statement.
Taiwan has denounced China for holding the drills, but has said it has seen no sign of live-fire exercises so far.
A senior Taiwan security official told Reuters there were more than 10 Chinese warships in Taiwan's "response zone" on Wednesday morning, and that China's coast guard was participating with "harassment" drills.
"Once again, China's aggressive military activities and rhetoric toward Taiwan only serve to exacerbate tensions and put the region’s security and the world's prosperity at risk," the U.S. State Department said in a statement.
Japan and the European Union also expressed concern.
"The EU has a direct interest in the preservation of the status quo in the Taiwan Strait. We oppose any unilateral actions that change the status quo by force or coercion," an EU spokesperson said.
Taiwan has lived under the threat of Chinese invasion since 1949 when the defeated Republic of China government fled to the island after losing a civil war with Mao Zedong's communists, though the two sides have not exchanged fire in anger for decades.
Bd-pratidin English/ Afia