A bus fell off an elevated road as it was heading to South Korea's main airport, killing 12 passengers, including a Korean-American man, and injuring another 12, police said Saturday. Police official Kang Bong-soo said the bus struck a guardrail as it was trying to avoid a broken-down car and fell about 30 feet (10 meters) from the road near a bridge on Saturday afternoon in Incheon, west of Seoul. He said the bus was carrying 24 people, and the driver, a 52-year-old American man and a 23-year-old Mongolian woman are among the injured as well as two children ages 5 and 7. Police did not identify the two injured foreigners, according to a report of the Associated Press.