A Myanmar military plane carry 116 people has gone missing somewhere between the southern city of Myeik and Yangon, according to officials.
"Communication was lost suddenly at about 1:35 pm (07:05 GMT) when it reached about 20 miles west of Dawei town," the Burmese army chief's office said.
Search and rescue operations are ongoing.
The plane was reportedly carrying 105 passengers and 11 crew.
Myanmar military plane goes missing
Plane is mainly carrying families of military personnel
The Burmese army chief's office said the plane was flying over the Andaman Sea when it went missing. Ships and planes have been scrambled to locate the plane.
The plane is believed to mainly carry family members of military personnel stationed in the coastal region.
"We think it was a technical failure. Weather is fine there," a source said.
Chinese-made plane delivered last year
The missing plane is a Chinese-made Y-8F-200 four-engine turboprop, a model commonly used by Myanmar's military to transport cargo.
It was one of China's most popular civilian and military transport aircrafts.
The plane was reportedly delivered in Mar'16 and had 809 flying hours.
Former military junta bought several of the aircraft from China during their 50-year isolated rule, when Western sanctions squeezed them.
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Myanmar military fleet: Recent history of plane crashes
All five crew members died when an air force plane burst into flames after taking off from Naypyidaw in Feb'16. Three army officers were killed in Jun'16 when a Mi-2 helicopter crashed and burst into flames in South-Central Bago.
08 Jun 2017
Wreckage of Myanmar military plane carrying 120 people found
The wreckage of a Myanmar military plane, which went missing with over 120 people on board, has been located in the Andaman Sea.
"We found the plane and some dead bodies this morning about 8.25am," a military spokesman said.
The plane on the Myeik-Yangon route had lost contact 29 minutes after take-off. It was raining then, though not heavily, said Gen. Myat Min Oo.