(Tokyo) Japanese Prime Minister Fumio Kishida was safe after being evacuated following an explosion as he prepared to deliver a speech at a fishing port in the west of the country, reports said. Japanese media on Saturday.

Several media outlets, including the Kyodo News Agency, reported that an object resembling a “smoke bomb” was thrown, but there appeared to be no injuries or visible damage at the scene.

A person was arrested at the scene at the Saikazaki fishing port in Wakayama prefecture, where Mr. Kishida was to deliver a speech, according to state broadcaster NHK.

No official confirmation was immediately issued by authorities, and police declined to comment.

NHK released footage showing a man being arrested by police as the crowd dispersed.

Japan has tightened its security arrangements after former Prime Minister Shinzo Abe was shot and killed last July while speaking at an election campaign event.

This new incident comes as Japan hosts G7 ministerial meetings in the north and center of the country this weekend, and the summit of leaders of the countries of this group is to be held in May in Hiroshima.