Original sentence: The EP-3E had been flying in international airspace off China, about 70 miles (110 km) away from the Chinese island of Hainan, when the craft was intercepted by several J-8IIM fighters
Edited sentence: The EP-3E had been flying over Exclusive Economic Zone waters of China, about 70 miles (110 km) away from the Chinese island of Hainan, when the craft was intercepted by several J-8IIM fighters