Thailand: all people on missing military chopper killed

The dead included Major General Nopporn Ruanchan, who was commander of the army's Infantry Division 4, said Lieutenant General Somsak Ninbanjerdkun, commander of Military Zone 3. 

Poor visibility due to the weather may have caused the crash, he added. 

Helicopter UH-72 went missing at about 10:30 (local time) on August 14 with five officers on board. 

The missing chopper was returning to a base in Phitsaanuloke from a relief operation mission in Pai district, near the border with Myanmar.