Lao search teams on October 22 began efforts to reach and retrieve the wreckage of a Lao Airlines plane which plunged into the Mekong River killing all 49 people on board on October 16.

The aircraft was spotted at the depth of 7-12 metres with its flight data record boxes, which may hold crucial evidence to decode the cause of the crash.

On October 21, the bodies of 43 of the victims had been recovered from the swollen river, with 17 identified and two Vietnamese nationals returned to their families.

In the afternoon on the same day, Laos observed a nationwide one-minute's silence to remember the victims of the crash, which is the nation's worst known air disaster.

An official memorial service took place in Pakse, Champassak province, near the crash site in the presence of Deputy Prime Minister and Defence Minister Duangchay Phichith.-VNA