A ⁠section of ⁠an overpass under demolition in the South Korean capital of Seoul collapsed on Tuesday, killing three people who were ‌conducting a safety inspection and injuring three others, fire and city officials said. Television footage showed emergency workers conducting a search-and-rescue operation as a long segment ⁠of the structure lay collapsed on the street below, near a railway crossing in central Seoul. Workers noticed that a part of the structure had slightly sunk while concrete...