The Foreign Minister of South Korea, Yu Myung-Hwan, says, "I think the Cheonan incident will serve as an occasion to solve the nuclear issue, as well."
The sinking of the warship Cheonan is the first crisis between the two Koreas since the North began nuclear testing.
Yu says the sinking shows that it is important for North Korea not to have nuclear weapons. He said he was not thinking of getting North Korea back to six-party talks on its nuclear program. He just wants to see "North Korea taking steps towards denuclearization".
Yu spoke after a meeting with U.S. Secretary of State Hillary Clinton in Seoul. Mrs. Clinton spoke also, saying her country would support South Korea.
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The South Korean government has announced how it plans to respond to the sinking of its ship, the Cheonan. A team of investigators from several countries says it was sunk by North Korea.
South Korea says it will:
Stop North Korean ships from going into its waters
Stop all exchanges with North Korea
Hold an exercise with the U.S. to practice fighting off submarines
Broadcast anti-communist messages into North Korea (it hasn't done this since 2004)
Decide what to do about South Korean companies' factories in North Korea
President Lee Myung-Bak says he does not want a battle with North Korea. But he also says, "After sinking our ship and claiming the lives of our servicemen, any kind of exchange or cooperation at this point is meaningless."