More than 3,000 people are still missing after catastrophic flash floods hit following a glacial collapse high in the Himalayan region.

A friend says she last spoke to Iryna Kripak about an hour before floods hit the Nepal-Tibet border.

Satellite images show the destruction caused by Nepal’s deadly floods. The cost of losses and damage is expected to run to several billion dollars.

Authorities have confirmed the safety of another Australian in Nepal following devastating floods, bringing the total number of safe Aussies to eight.

The Nepali PM said the government's focus would shift to "rehabilitation."

The floods caused significant loss of life and property, with many people injured, missing and severely affected by the disaster.

Nepal Police has denied social media claims that security agencies kept flood relief undistributed. The force said such rumours can damage morale, fuel distrust and hinder disaster response.

Disaster authorities’ preliminary damage estimate of $2.56 billion is nearly a fifth of Nepal’s annual government budget of about $14 billion. The full cost of rebuilding has yet to be calculated, though some estimates put it at $4 billion to $5 billion.