Washington, Aug. 11 (CNA) The U.S. State Department on Monday expressed Washington's opposition to China's announcement last week that it would impose traffic control measures on vessels in the Taiwan Strait during the approach of Typhoon Dolphin. "The United States opposes any actions that interfere with high seas freedoms of navigation and overflight that apply in the Taiwan Strait," an unnamed State Department spokesperson told CNA. Taiwan's Coast Guard Administration (CGA) responded Friday by saying that the Taiwan Strait is an international waterway and that China has no authority to impose controls over it. The move came as China has been conducting what it calls "special maritime law enforcement operations" in waters east of Taiwan since June. U.S. Secretary of State Marco Rubio and the State Department have previously criticized China's deployment of coast guard vessels near Taiwan, saying such operations undermine regional stability.