North Korea fired a short-range ballistic missile on Thursday as it warned of "fiercer military responses" to the US, saying Washington is taking a "gamble it will regret.”
North Korea has conducted a record number of such tests this year, and also fired hundreds of artillery shells into the sea more recently as South Korea and the United States staged exercises, some of which involved Japan.
South Korea's military said the ballistic missile was launched from the North's east coast city of Wonsan at 10:48 a.m. (0248 GMT), flying 240 km (150 miles) to an altitude of 47 km at the speed of Mach 4.
The latest launch came less than two hours after North Korea's foreign minister, Choe Son Hui, slammed a Sunday trilateral summit of the United States, South Korea and Japan, during which the leaders criticised Pyongyang's weapons tests and pledged greater security cooperation.
Choe said the three countries' "war drills for aggression" failed to rein in the North but would rather bring a "more serious, realistic and inevitable threat" upon themselves.
"The keener the US is on the 'bolstered offer of extended deterrence' to its allies and the more they intensify provocative and bluffing military activities ... the fiercer the DPRK's military counteraction will be," Choe said in a statement carried by the official KCNA news agency.
Choe didn’t say what steps North Korea could take but said that “the US will be well aware that it is gambling, for which it will certainly regret.”