Kishida promises heightened security for G7 after campaign event explosion.

Japan's Prime Minister Fumio Kishida has vowed to ensure the safety of Group of Seven leaders and senior ministers visiting his country through next month after he was evacuated from an apparent attack. The suspect in Saturday's incident, identified by police as 24 year-old Ryuji Kimura, was also carrying a knife when he was arrested, as well as a possible second explosive device he dropped at the scene after bystanders and police tackled him. No motive for the apparent attack, in which media said one police officer was slightly injured, has been announced.