The White House on the other hand appeared to strike a conciliatory note calling for peaceful resolution of disputes in the South China Sea, amid a sharp reaction from China on a recent comment made by commander of the US 7th fleet that welcomed Japanese air patrol in the sea.
China has warned that this will add to the tension in the region which said that one should focus on stability in the region, and not to increase tension.
At a separate news conference, the State Department echoed the Pentagon.
"We're not aware of any plans or proposals for Japan to patrol the South China Sea.
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I believe they were comments made by a DOD official," the State Department Spokesperson, Jen Psaki, told reporters at her daily news conference.
The White House favoured a peaceful resolution of disputes in South China Sea, she said observing that this is a zone of commerce that's critically important to the global economy.
"The administration policy (is) that we have sought to pursue is to make sure that disputes that are arising in the South China Sea are resolved peacefully. South China Sea is a zone of commerce that's critically important to the global economy," White House Press Secretary, Josh Earnest said.