Japan’s Prime Minister Fumio Kishida has been evacuated unharmed from a public event after what appeared to be a smoke bomb was thrown at him, the BBC reports.
A man was detained at the scene in Wakayama, where Mr Kishida had been due to give a speech, local media reported.
A witness said they saw a person throwing something, followed by smoke, while another said they heard a big bang. No injuries were reported.
Video showed officers piling on top of a person, believed to be a suspect.
He was arrested on suspicion of obstruction of business and later identified by the authorities as 24-year-old Ryuji Kimura. His motivation is still unclear.
Japan’s public broadcaster, NHK, quoted Mr Kishida as saying there was a “loud blast” at the venue. “Police are investigating details, but I’d like to apologise for worrying many people and causing them trouble.”