Chōfu is a city in the western side of Tokyo Metropolis, Japan. As of 1 April 2021, the city had an estimated population of 238,087, and a population density of 11,000 per km². the total area of the city is 21.58 square kilometres. From Wikipedia
Police are examining how a truck's rear-end impact cascaded into a multicar collision during a congested stretch near Chofu.