SEOUL, SOUTH KOREA — Hundreds of people were rescued or evacuated after a fire broke out at a large commercial building in the South Korean city of Seongnam on Friday, fire officials said. More than 260 firefighters and 80 vehicles were deployed to the scene of the blaze, which was extinguished about an hour and a half after it was first reported at around 4:30 p.m., according to the Gyeonggi provincial fire department. Earlier, YTN television reported that a number of people were trapped inside, with footage showing black smoke engulfing a large part of the building. Smoke rises at