President Obama has been briefed on another nuclear test by North Korea.

FOX's Rachel Sutherland reports from Washington:

In a statement, the President condemned the nuclear test as a grave threat to regional security and to international peace and stability. The test comes after President Obama, during his trip to Asia, warned North Korea to end its nuclear ambitions.

(President Obama) "North Korea needs to know that provocations will online invite more pressure, and further deepen its isolation."

On his way back to Washington overnight, the President held phone calls with the President of South Korea and the Prime Minister of Japan. The leaders agreed to work with the United Nations Security Council to show North Korea there are consequences for its actions.

In Washington, Rachel Sutherland FOX News.

Follow Rachel Sutherland on Twitter: @SutherlandFOX