Japan's National Police Agency has released a report on the bomb attack against Prime Minister Kishida Fumio in April. The report points out that local police failed to hold thorough discussions with the organizer and did not take effective safety measures.

Kishida was about to give an election campaign speech at a fishing port in Wakayama Prefecture, western Japan, when a man threw the explosive device. The prime minister was unharmed as police guards quickly shoved the bomb away and evacuated him. Police arrested 24-year-old Kimura Ryuji on the spot.

The agency's report released on Thursday says the organizer of the event told the Wakayama prefectural police in advance that only people who had links with the local fisheries association would be allowed to enter the venue.

The report says that was deemed an important precondition for making Kishida's security arrangements.

Employees of the fisheries association were supposed to check visitors at the venue's entrance. But the report says their checking was inadequate as none of them noticed the suspect when he entered the designated area for the audience.

The report says the local police failed to include effective safety measures in their security plan due to a lack of thorough discussions with the organizer. The report says this failure allowed the attack to happen.

The National Police Agency found that local police had requested metal detector checks of visitors' belongings, but these were not carried out.

The agency has reviewed the preparatory phase of the security plan, saying the local police should have submitted a detailed list of necessary measures, including the use of equipment, and the procedures should have been recorded.

The report sheds light on the insufficient communications between the local police, who sought a watertight security plan for Kishida, and the organizer, who wanted to prioritize the closeness between voters and the prime minister.

National Police Agency Commissioner General Tsuyuki Yasuhiro expressed regret, saying the incident occurred less than a year after the fatal shooting of former Prime Minister Abe Shinzo.

Tsuyuki indicated he will urge local police departments to work closely with the organizers of election campaign events and tell them to choose appropriate venues to ensure that security arrangements for VIPs will be effective and the audience will be safe.