WASHINGTON: China only ​gave the United ​States a few hours ​notice on July 6 that it was going to test launch a ‌ballistic ⁠missile and ⁠gave insufficient detail, a State ​Department official said on Wednesday."China's notification to ​the United States came only a few hours before ​the launch and ⁠failed to ‌provide sufficient detail, ​falling considerably ​short of standards ⁠adopted by all other P5 nuclear ​weapon states," the official said."The test occurred amid China's rapid and opaque nuclear weapons buildup and is of great concern to the ‌region," the official added.China's military test-fired a missile from ​a ​nuclear-powered submarine ⁠into the Pacific on Monday, state media reported, drawing criticism and concern ​from the U.S., Japan, Australia, New Zealand and Taiwan.