JAKARTA, April 5 (AFP) - More than 70 people have died and dozens are still missing after flash floods and landslides hit Indonesia and neighbouring Timor-Leste, officials said Monday (Apr 5).

"There are 55 dead, but this number is very dynamic and will definitely change, while some 42 people are still missing," Indonesia disaster management agency spokesman Raditya Djati told broadcaster MetroTV.

At least 16 people had also died in Timor-Leste, said an official in the tiny half-island nation that lies between Indonesia and Australia.

Floods sparked by torrential rain wreaked havoc and destruction on islands stretching from Flores in Indonesia to Timor-Leste, sending thousands fleeing into shelters.

The deluge and subsequent landslides caused dams to overflow, submerging thousands of houses and leaving rescue workers struggling to reach trapped survivors.

Fatal landslides and flash floods are common across the Southeast Asian archipelago during the rainy season.