Most of China's submarine fleet is diesel-electric, but Beijing is ramping up production of nuclear-powered classes.

North Korean leader Kim Jong Un visits the construction site of an 8,700-ton nuclear-powered submarine capable of launching surface-to-air missiles in this picture released by North Korea's official ...

SEOUL, South Korea (AP) — North Korea on Thursday displayed apparent progress in the construction of a nuclear-powered submarine, with state media photos showing a largely completed hull, as leader ...

U.S. President Donald Trump announced on the 30th, “I have approved South Korea’s construction of nuclear-powered submarines,” but added, “South Korea will build them at a Philadelphia shipyard in the ...

India's ambition for indigenous nuclear-attack submarines faces a ten-year wait. The first vessel is projected for 2036. A ...

Add Yahoo as a preferred source to see more of our stories on Google. The US Navy's intel chief said China is shifting toward building all nuclear-powered submarines. Supported by its vast ...

North Korean leader Kim Jong Un observed construction of a submarine with his daughter, a potential heir, and oversaw the test-firing of long-range surface-to-air missiles, state media reported on ...