North Korea fired an unknown projectile Tuesday into the East Sea (also known as the Sea of Japan), NBC News reported. The report cited South Korea’s military.

Fumio Kishida (Japan’s Prime Minister) said that Pyongyang launched two ballistic missiles. He called the Japanese government’s repeated provocations “extremely regrettable,” according NBC News.

According to the office of the President, South Korea’s National Security Council will meet in order to address the issue.

Park Kyungmi (the presidential spokesperson) said that the president’s office would be hosting the meeting.

The office of the Joint Chiefs of Staff — a group of chiefs from each major branch of South Korea’s armed services — did not say what type of projectile Pyongyang fired or how far it flew.

The Associated Press reported that Japan’s Coast Guard issued a maritime safety alert to ships, but didn’t immediately know the location of the weapon.

The last month North Korea’s state media reportedly saidPyongyang successfully tested a long-range cruise missile. A few days later, it launched ballistic missiles off its east coastJapan condemned my move.

Trump’s administration made initial gains in the nuclear negotiations between North Korea, the United States and other countries.

However talks broke down almost two years agoWashington refused sanctions relief for Pyongyang to dismantle its nuclear weapons and long range missiles in exchange.

In the spring of this year a top North Korean official saidUntil the United States drops its “hostile” policies, Pyongyang won’t respond to multiple invitations to resume nuclear talks.