日本政府负责对外关系事务的最高机关。此外，朝鲜负责对外事务的机关也叫做外务省。
日本外务省说尚未做出正式决定，并拒绝进一步置评。
Japan's Ministry of Foreign Affairs said nothing official has been decided yet and declined to comment further.
同日，中国驻日本大使馆也向日本外务省提出了严正交涉。
On the same day, Chinese Embassy in Japan also lodged a solemn representation with the Japanese Ministry of Foreign Affairs.
日本外务省周一表示，旅客在欧洲使用公共交通工具和参观旅游景点时应该小心谨慎。
Japan's Foreign Ministry said Monday that travelers should be cautious when using public transportation and visiting tourist sites in Europe.
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