John Kerry has arrived in South Korea, where he said that North Korea will not be accepted as a nuclear power and that "President Obama has ordered a number of unspecified exercises not to take place; says U.S. has tried to lower its rhetoric," according to Reuters.

Here are tweets from the U.S. embassy in Seoul and Reuters:

Welcome to #Korea, #SecKerry! We're excited to host you for your first trip here as Secretary of State! pic.twitter.com/NjFUQSAy9o

— U.S. Embassy Seoul (@USEmbassySeoul)
April 12, 2013

#SecKerry w/ @mofa_kr Yun in #Seoul: We have had an extraordinary exchange of thinking and we support each other's positions

— U.S. Embassy Seoul (@USEmbassySeoul)
April 12, 2013

U.S. Secretary of State Kerry says North Korea will not be accepted as a nuclear power #breaking

— Reuters Top News (@Reuters)
April 12, 2013

Kerry says United States will, if necessary, defend its allies

— Reuters Top News (@Reuters)
April 12, 2013

U.S. Secretary of State Kerry says North Korean rhetoric unacceptable by any standard

— Reuters Top News (@Reuters)
April 12, 2013

#SecKerry w/ @mofa_kr Yun in #Seoul: Over the last 60 years the US and #SKorea have built one of the strongest partnerships on the planet

— U.S. Embassy Seoul (@USEmbassySeoul)
April 12, 2013

#SecKerry w/ @mofa_kr Yun in #Seoul: #US, #ROK, intl community are all united in the fact that #DPRK will not be accepted as a nuclear power

— U.S. Embassy Seoul (@USEmbassySeoul)
April 12, 2013

#SecKerry w/ @mofa_kr Yun in #Seoul: United States will, if needed, defend our allies and defend ourselves

— U.S. Embassy Seoul (@USEmbassySeoul)
April 12, 2013

Kerry says U.S. preference would be to get into talks on North Korean nuclear issue, but North must be serious about denuclearization

— Reuters Top News (@Reuters)
April 12, 2013

Kerry says U.S. preference would be to get into talks on North Korean nuclear issue, but North must be serious about denuclearization

— Reuters Top News (@Reuters)
April 12, 2013

#SecKerry w/ @mofa_kr Yun in #Seoul: If Kim Jong-un decides to launch a missile he will choose willfully to ignore the entire intl community

— U.S. Embassy Seoul (@USEmbassySeoul)
April 12, 2013

#SecKerry w/ @mofa_kr Yun in #Seoul: His people are desperate for food, not for missile launches.

— U.S. Embassy Seoul (@USEmbassySeoul)
April 12, 2013

Kerry says President Obama has ordered a number of unspecified exercises not to take place; says U.S. has tried to lower its rhetoric

— Reuters Top News (@Reuters)
April 12, 2013