North Korea on Tuesday night (Wednesday morning local time) fired two short-range ballistic missile into the Sea of Japan, South Korea's military said, according to the British Independent.
The two missiles were fired at around 5:20 a.m. from North Hwanghae Province and hit waters northeast of the port city of Wonsan off the country's east coast, South Korea's Joint Chief of Staff (JCS) said.
Sources told the South Korean Yonhap news agency that the missiles flew around 500 kilometers.
The JCS said that the “military is keeping close tabs on the situation and prepared to deal with any North Korean provocations."
The announcement of the missile fire comes a day after North Korean leader Kim Jong-un said his country now possesses nuclear warheads small enough to fit on ballistic missiles.
The test marks the second time North Korea have launched missiles into the Sea of Japan in just one week, noted the Independent.
On March 3 the country fired short-range missiles into the Sea of Japan, just hours after the UN Security Council voted in favor of sanctions against the regime.
Last week, Kim ordered his country to be prepared to use nuclear weapons “at any time”.
And on Sunday, North Korea threatened "indiscriminate" nuclear strikes against South Korea and the United States if the two allies push ahead with joint military drills.