US President Barack Obama spoke by phone late Monday with his South Korean counterpart Lee Myung-bak and Japanese Prime Minister Taro Aso to "coordinate" reaction to North Korea's nuclear test, the White House said.
Obama spoke with Lee "to consult and coordinate our reaction to the North Korean nuclear test," the White House said.
They "agreed to work closely together to seek and support a strong United Nations Security Council resolution with concrete measures to curtail North Korea's nuclear and missile activities."
In his talks with Aso, Obama reiterated his country's "unequivocal commitment to the defense of Japan and to maintaining peace and security in Northeast Asia."
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