North Korea has fired three short-range ballistic missiles, said the US military. They were launched from a site in the North Korean province of Gangwon and flew for about 250km officials in South Korea said.
Since firing an intercontinental ballistic weapon last month, Pyongyang has threatened to aim missiles at the US Pacific territory of Guam.
North Korean missile tests often come in response to South Korean military exercises involving the US. Thousands of US and South Korean troops are currently taking part in joint military drills, which are mainly largely computer-simulated exercises.
The projectiles were first launched at 06:49 on Saturday (21:49 GMT Friday), South Korea’s Defence Ministry said. The US military said three missiles were fired.
The launches were spread over a period of 30 minutes.