Story highlights McMaster also confirmed publicly Wednesday that military options had been prepared

Other members of the President's national security team have also spoken

Washington (CNN) Revised US military options for North Korea have been prepared and are ready to be presented to President Donald Trump, two US military officials told CNN.

The options, which include a military response, will be presented to the president if Pyongyang conducts an underground nuclear or ballistic missile test that indicates the regime has made significant progress towards developing a weapon that could attack the US, they said.

US National Security Adviser HR McMaster also confirmed publicly Wednesday that military options had been prepared.

"What we have to do is prepare all options because the President has made clear to us that he will not accept a nuclear power in North Korea and a threat that can target the United States and target the American population," McMaster said during remarks at a Washington think tank.

A day ahead of the visit to Washington by South Korean President Moon, McMaster told a group of defense stakeholders that South Koreans were being "held hostage" by the North Korean regime.

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