A tropical depression is forcing rain across the Mekong region.
Hundreds of families have been forced to evacuate amid extreme rainfall in Cambodia’s western province of Battambang.
“A two-year-old child and 57-year-old man have drowned in the flood,” Seak Vichet, a spokesman for the Cambodian national committee for disaster management said on Saturday.
Authorities do not yet have a clear picture of the extent of the damage or people affected but expect the situation to get worse.
In neighbouring Vietnam, five people died with eight still missing as floodwaters inundated more than 33,000 homes and forced more than 26,000 people to evacuate.
The national highway linking northern Vietnam to the south has been flooded, while airlines cancelled some domestic flights, local media report.
Roads also turned to rivers and water inundated properties in Thailand’s Nakhon Ratchasima province, as residents scrambled to place sandbags and move their belongings to higher ground.
Provincial Governor Vichien Chantaranothai said the Pak Chong district was the hardest hit, with 8,000 households and 12,000 people affected. About 200 homes were inundated.
Authorities were distributing food packages and urged people to evacuate to community shelters.
“The water is three metres deep in some parts,” he told reporters on Saturday.
The Khao Yai National Park was closed this weekend because of heavy rain and landslides.
In Laos, rising floodwaters have damaged villages and rice fields along the Xepon and Xebanghieng rivers in Savannakhet province with more rain on the way.