Japanese make arrest in threats to U.S. ambassador - State Dept

WASHINGTON (Reuters) - Japanese police have arrested a man in connection with telephone threats made to the U.S. Embassy and American Ambassador Caroline Kennedy, the State Department said on Thursday. State Department spokeswoman Jen Psaki said a 52-year-old man from Okinawa was apprehended by police in Japan but did not provide further details. "We take any threats very seriously - we have been working for weeks with the Japanese government," she said. Reports of the threats emerged as first lady Michelle Obama arrived in Japan on Wednesday for a three-day visit, including a meeting with diplomatic staff from Tokyo and Osaka. The reports came two weeks after the U.S. ambassador to South Korea, Mark Lippert, was injured by a man with a knife. Psaki said the threats in Japan began before Lippert was attacked and the events were not connected, Psaki said. (Reporting by Doina Chiacu; Editing by Eric Beech)