After the sound of the explosion, Kishida changed land to continue his speech and tweeted to canvass votes for the LDP candidate.

According to a report by the Japan Broadcasting Association (NHK), an explosion was heard in Japanese Prime Minister Fumio Kishida's speech at Zagazaki fishing Port in Wakayama City on the 15th. Reported that the purpose of the speech is to participate in the House of Representatives and Koyama District 1 by-election candidates of the Liberal Democratic Party to assist in the election. Later, Fumio Kishida gave another speech at JR (Japan Railway Company) and Kishiyama Station, and Kishida tweeted about the content of his speech there.