Police officers and volunteers have patrolled a central Tokyo street before Sunday's Imperial procession marking Emperor Naruhito's accession to the throne.
About 50 people made safety checks on the Aoyama-dori street on Thursday. They made sure no suspicious objects were placed. Police dogs capable of detecting explosives sniffed trees and plants along the road.
The participants also distributed leaflets that give advice for those wishing to see the procession.
The motorcade of the Emperor and Empress will drive through the street on its way from the Imperial Palace to the Akasaka residence.
The procession was originally scheduled immediately after the enthronement ceremony on October 22.
But it was postponed in consideration of the extensive damage caused by Typhoon Hagibis.
On the day of the procession, Tokyo police plan to deploy 26,000 officers, including 3,000 dispatched from police departments across the nation.
An official in charge says traffic controls, vehicle inspections and baggage checks may give trouble to local residents, but he asks for their understanding and cooperation.
The official says police will do their best to maintain security.