North Korea has fired two unidentified projectiles, the South Korean Yonhap News Agency has reported.

The news agency said that South Korea’s Joint Chiefs of Staff confirmed the launches, which took place on Tuesday morning in the region.

"Our military is monitoring the situation in case of additional launches and maintaining a readiness posture," the Joint Chiefs said in a statement.

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The unidentified projectiles flew east from South Pyongan Province before landing in the Sea of Japan.

South Korea called an emergency meeting of its National Security Council in response to the launch.

This is the 10th such launch since May, and it comes the same day a North Korean official said that the country is willing to restart denuclearization negotiations with the United States later this month. Those negotiations are predicated on whether the Trump administration presents satisfactory new proposals, according to First Vice Foreign Minister Choe Son Hui.

Choe said in a statement published by North Korean state media that the country may end negotiations if the U.S. proposals are not adequate, arguing that the U.S. has had more than enough time to come up with new possibilities that will satisfy Pyongyang.

Japan, South Korea and other U.S. allies have expressed alarm at the missile tests, many of which have been short-range ballistic missiles, and have said they violate a United Nations resolution. But President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE has repeatedly sought to downplay them, saying they don't violate his personal pact with the North Korean leader.