NEW : U.S. Embassy says it 's aware of reports the man was trying to swim to North Korea . The Embassy said it had been in contact with South Korean authorities but did n't have any additional information to share . A South Korean official says not immediately clear if the man was attempting to cross the border . The Associated Press contributed to this report.
NEW : U.S. Embassy says it 's aware of reports the man was trying to swim to North Korea . A South Korean official says not immediately clear if the man was attempting to cross the border . The Associated Press contributed to this report.