Japan probes Kennedy death threats
Japanese police are investigating phone calls threatening to kill US ambassador Caroline Kennedy and another American envoy, authorities said.
Tokyo police are looking into calls to the US embassy threatening to kill Ms Kennedy and similar ones targeting Alfred Magleby, the US consul general based on the southern island of Okinawa, an Okinawa police official said.
Tokyo police declined to comment. The embassy also did not comment, citing policy regarding the ambassador's security.
US state department spokeswoman Pen Psaki said the US government takes threats to American diplomats seriously.
"We are working with the Japanese government to ensure the necessary measures are in place. We will not comment on the specific details of any threats or the steps we take to address them," she said.
Okinawa is home to about half of the 50,000 American troops based in Japan.
Japanese media reports said that the death threats came last month from a caller speaking in English, and that police were looking into the case on suspicion of blackmailing. No other details, including motives, were known.
Earlier this month, the US ambassador to South Korea, Mark Lippert, was knifed by an anti-US activist in Seoul and was in hospital for several days.