But further tests are needed to determine the level of pesticide and herbicide residue in their blood.
The group was held in a room surrounded by wire fencing and forced to work under threat for long hours at little pay.
Somkot Mangnomek, governor of Xieng Khouang province, had authorized a shipment of timber without central government approval.
But workers say the raise is necessary to combat increases in living costs.
Zhao Wei says accusations his network is trafficking in drugs, people and wildlife are "unreasonable" and "malicious."
Authorities arrest two Laotians for wildlife smuggling after the endangered mammals are rescued.
Sources say the two-month-old decree is stifling civil society work.
The numbers held in captivity continue to grow despite a year-old government pledge to close the farms.
Projects are planned across many sectors, with Laos's leaders counting on economic growth to support their legitimacy.
The cross-border traffic in valuable timber continues despite government efforts to halt the trade, sources say.
Two affected provinces have already approved the plans, with two other provinces and the capital still considering them.
Lack of funds and available workers have slowed attempts to restore forest cover in the heavily logged country.
Local authorities had forbidden Christians from neighboring villages to join each other for festivities, a local source says.
Two valuable caches are uncovered in one week, suggesting the trade will be difficult to shut down.
The ceremony marks the fifth anniversary of the abduction of Sombath Somphone.
Signs posted at a major crossing warn would-be migrants against being lured into servitude by false promises.
It has now been five years since the rural development expert vanished in police custody.
Leth Xaiyaphone says officials from the province’s finance, forestry, and commerce departments are being investigated.
Provincial task force committees estimate 4,411 families will be affected by the $6 billion mega-project.
Officials sources say he did little other than enrich himself while in office.
She had labored for hours in agony, and died on her way to the operating room when doctors finally relented.
NGO officials said she ran away because she was unable to study and feared for her safety at the camp.
Lao officials say that only the already existing Bokeo provincial airport will now be used.
They had cut down rubber trees on farmland given by the government to a Vietnamese company.
Local villagers have let their cattle graze on the airport grounds after Lao Airlines ceased operations there a year ago.
Authorities brutally assault two men and a boy until they are bloody and unconscious, a relative of one of the detained says.
Officials say legal action must be taken against the project developer Bothong Inter Group.
More than 1,000 people came out to protest at PS Agriculture and Industry Promotion Import-Export Company over two days.
Rural development expert Sombath Somphone has been unaccounted for since December 2012 and the Lao government has not been forthcoming about his case.