The number of deaths caused by serious industrial accidents at workplaces in the first half of the year dropped nearly 10 percent from a year ago, a government report said. A total of 289 workers died from January to June, marking a drop of 9.1 percent, or 29 people, from 318 on-duty deaths of workers in the previous year, according to the Ministry of Employment and Labor. The number of industrial accident cases also declined 5.6 percent, or 17 cases, compared to a year ago, recording 284 cases