Japanese police are mobilizing about 25,000 officers to provide security for US President Donald Trump, who will visit the country as a state guest from Saturday.
The record number of officers for any visiting US president is being deployed because Trump's itinerary includes not just Tokyo but also the neighboring prefectures of Chiba and Kanagawa.
The Japanese government has designated 10 sites in and around Tokyo as no-fly zones for drones during the visit of US President Donald Trump.
Trump will arrive in Japan as a state guest on Saturday. He is due to play golf with Prime Minister Shinzo Abe and watch a sumo tournament on Sunday. On Monday, Trump will meet Emperor Naruhito and hold a summit with Abe.
Iranian Foreign Minister Mohammad Javad Zarif's three-day visit to Japan was apparently arranged hastily. It was announced on Wednesday, the day he arrived.
The visit seems to be part of Iran's efforts to drum up support from the international community in the face of intensifying pressure from the United States.
Japan's top government spokesperson will visit the United States later this week for talks with Vice President Mike Pence and Secretary of State Mike Pompeo.
Chief Cabinet Secretary Yoshihide Suga will leave on a four-day trip on Thursday. He is also minister for resolving abductions of Japanese nationals by North Korea, and for mitigating the impact of US military forces in Okinawa.
Japan's Emperor Akihito and Empress Michiko have paid their respects at the mausoleum of Emperor Jinmu. The visit was one of the ceremonies leading up to the Emperor's abdication on April 30.
The Emperor and Empress were in Kyoto on Monday before traveling by train to Kashihara City in Nara Prefecture on Tuesday. The couple were then driven to the tomb of the legendary first emperor.