Four individuals from the contractor responsible for demolishing the Seosomun Overpass were booked on charges of occupational negligence resulting in death, according to Seoul Metropolitan Police Agency Commissioner Park Jeong-bo on Monday.

Police launched a compulsory investigation into the collapse of the Seosomun overpass in Seoul that killed three people, raiding city offices.

Police on Sunday accelerated their probe into last week's deadly collapse of an overpass in central Seoul, focusing on whether the demolition work...