South Korea's jobless rate dropped in March from a month earlier, but job creation also slowed, raising concerns that the labor market conditions are not improving fast, a government report showed Wednesday. According to the report by Statistics Korea, the jobless rate stood at 3.9 percent last month, down from 4.5 percent tallied in February. The seasonally adjusted jobless rate also dropped from 3.9 percent to 3.5 percent.