The transport of goods between China, Thailand and Laos has been affected by the continually falling level of the Mekong, according to Bokeo provincial authorities on Thursday.
At present only small boats carrying about 50 tonnes or less can journey along the route between the Chinese border to Chiang Saen in Thailand and Bokeo province in Laos due to the low level of the Mekong, Southeast Asia's longest waterway.
The lowest levels recorded in the Mekong in half a century have also affected other downstream nations including Vietnam and Cambodia.
Lao officials say the extremely low water level this year is due to climate change and deforestation, as 35 percent of the water flowing into the Mekong comes from its tributaries.
Read more: Low Mekong affecting goods transport in north