U.S. F-15 fighter jets resumed their flight training operations Wednesday, just two days after an F-15 crashed into the sea off Okinawa and the subsequent suspension of training, the Defense Ministry said.
Two F-15 fighters took off from the U.S. Kadena Air Base in Okinawa Prefecture at around 7:50 a.m., followed by several others shortly afterward. The prefectural government has reacted against the resumption of flights, saying it has received no explanation about the cause of the crash.
An F-15 jet crashed at around 6:25 a.m. on Monday about 80 kilometers south of Naha, the prefectural capital, during training. The pilot, the sole person on board, was picked up by Japan's Air Self-Defense Force after an emergency ejection, and is seriously injured.
The U.S. Air Force temporarily halted flight training for F-15 fighters just after the incident, but the next day said it would resume the exercises on Wednesday, saying the safety of F-15 fighter flights is assured after an inspection.
"I think the U.S. side made the decision based on their own confirmation of the safety of all F-15 fighters," Japanese Defense Minister Itsunori Onodera told reporters after the resumption.
The Okinawa government has asked a local bureau of the ministry to appeal to the U.S. military to ground F-15 flights until they find the cause of the crash.
Okinawa has seen a series of crashes involving other U.S. military aircraft over the years. Another F-15 fighter crashed into the sea off Okinawa in May 2013, and an object weighing 1.4 kilograms fell off an F-15 fighter during a flight in February.