In Myanmar, "46 people have died and more than 200,000 have been affected by the floods across the country", an official at the Relief and Resettlement Department told AFP.
"We are speeding up assistance and relief work," said the official, who asked not to be named.
Relentless monsoon rains have triggered flash floods and landslides, destroying thousands of houses, farmland, bridges and roads -- with fast-flowing waters hampering relief efforts.
Hundreds have also perished in recent days in India, Nepal, Pakistan and Vietnam following floods and landslides triggered by heavy seasonal rains.