TOKYO (Reuters) -A man wielding a knife was arrested near the U.S. embassy in Tokyo, TBS news reported on Friday.
A riot policeman was injured but the extent of his injuries is unknown, the report said, citing police sources.
The motive behind the attack was not immediately known.
The attack comes days before U.S. President Donald Trump’s planned trip to Tokyo. Trump will meet with Japan’s Emperor Naruhito and newly elected Prime Minister Sanae Takaichi during his October 27-29 stay in Japan, the government has said.
The Tokyo Metropolitan Police Department has mobilised up to an additional 18,000 personnel to bolster security for the visit, Kyodo News reported earlier this week.
(Reporting by Anton Bridge and Kantaro Komiya; Editing by Himani Sarkar)
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