An explosion has occurred at a military base in the city of Gimhae in the southeastern part of the Republic of Korea, Yonhap news agency reported.
Three people were reported injured, but their burns are not life-threatening. They are not military personnel.
The explosion occurred during an inspection of a newly built hazardous materials storage tank at the Kimhae supply base.
The cause of the incident is not yet known.
Meanwhile, an unidentified drone was spotted flying over Iwakuni Airport in Japan, whose runways are used by both civilian and U.S. Marine Corps aircraft, Kyodo news agency reported.
The incident occurred on December 22 at around 7:00 p.m. local time.
This led to delays for commercial flights served by the airport. The Tokyo-Iwakuni flight was diverted to nearby Hiroshima Airport, from where it later departed for Iwakuni, arriving three hours late.