In an incident during which an explosive was thrown close to Prime Minister Kishida who was visiting Wakayama City, it was discovered {that a} cylindrical object seized by the police from the scene was crammed with black powder, which is taken into account to be black powder. The powder within the vial within the suspect’s rucksack can also be believed to be black powder, and the police are investigating it intimately.
Source
Prime Minister’s speech venue explosion incident On-site seizure cylindrical factor powder black powder | NHK
