A cargo plane operated by Asiana Airlines, South Korea's second-largest flagship carrier, crashed into the sea off Jeju Island Thursday, killing two, the Coast Guard said.

Debris of the Boeing 747 aircraft, which departed from Incheon International Airport at 3:05 a.m. for China's Pudong, was found in waters about 107 kilometers west of the city of Jeju by a Coast Guard patrol boat at 6:40 a.m., the Coast Guard said.