A US nuclear-powered attack submarine is visiting a South Korean port, government sources said Friday, amid heightened tensions following North Korean missile tests.
The 6,900-ton USS Oklahoma City arrived at the southern port of Busan on Thursday, they said, to replenish supplies and have its crew rest.
The 6,900-ton USS Oklahoma City is seen in this photo captured from the Facebook account of the US Navy. (Yonhap)
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