North Korea appears to be poking a hornet’s nest as they continue to provoke Japan and once again has reportedly fired a submarine-based missile toward Japan Wednesday, CNN, Reuters and other news organizations are reporting, attributing the word to South Korea’s Joint Chiefs of Staff and its Defense Ministry. The missile was fired at around 5:30 a.m. local time from the city of Sinpo on North Korea’s east coast, Reuters reported.

The act is one of a series of launches conducted by the country in defiance of United Nations sanctions. The launch comes during an annual drill between the United States and South Korea that involves 25,000 U.S. troops, CNN reported. North Korea has called the exercises preparation for invasion and has threatened retaliation, according to Reuters. CONTINUE