At least 50 people are missing and four in critical condition as torrential rain that has killed 38 people pounds western and central Japan, public broadcaster NHK says, with more than 1.6 million evacuated from their homes.

A landslide triggered by torrential rains has killed at least 17 people in eastern Myanmar and forced the evacuation of scores more, state media said on Tuesday.

Torrential rains and floods in Pakistan leaves 36 dead and affect over 250,000 people, with swollen rivers and water channels damaging hundreds of villages.