Shizuoka, Japan—A motorcyclist died today following a collision with a large truck on the Tomei Expressway. The accident occurred in the afternoon, causing the highway to be shut down for several hours while investigators processed the scene. Traffic was backed up for kilometers as emergency vehicles worked to clear the wreckage.

Police report that the motorcycle struck the rear of the truck while both vehicles were moving in the same lane. The rider was pronounced dead at the scene by paramedics. The driver of the truck was uninjured but was taken to a local station for questioning as part of standard procedure.

The expressway is one of the busiest corridors in Japan, and this incident caused major disruptions for commuters and commercial transport. Traffic flow was diverted to local roads while crews worked to move the damaged motorcycle and clean up debris. All lanes were eventually cleared by early evening.

Experts from the highway police are analyzing tire marks and physical evidence at the scene to understand how the collision occurred. There is no initial evidence to suggest that the truck driver acted illegally, though investigators are reviewing dashcam footage from nearby vehicles. Speed and visibility are being considered as key factors.

The victim’s identity has been confirmed, but officials have not released the name publicly until family members provide consent. The tragedy has renewed concerns regarding motorcycle safety on high-speed expressways where heavy vehicle traffic is constant.

Road maintenance workers arrived at the site once the investigation was concluded to repair damage to the median barrier. The Tomei Expressway has a high rate of commercial traffic, and collisions between smaller vehicles and larger trucks remain a significant focus for highway safety planners.

The case remains under active investigation. Police are calling for any witnesses who were traveling on the Tomei Expressway this afternoon to provide their accounts. No further information has been disclosed at this time.