Nepali officials said 187 foreign tourists have been rescued following the deadly floods and landslides, including 114 Indians, according to the Nepal Tourism Board. The disaster has killed more than 600 people in Nepal, while around 3,000 people remain missing on both sides of the Nepal-China border, according to officials.

Among those affected, 338 of 404 people from Maharashtra who were stranded in the Nepal-Tibet region have been traced and confirmed safe, according to a Maharashtra government report. Of them, 37 are being transferred to India, while 60 tourists who travelled through Mumbai-based Richa Tours remain untraceable. The Ministry of External Affairs has also shared details of 149 Maharashtra residents currently safe in Tibet with the state government for further identification and coordination.

Nepal could need between $4 billion and $5 billion to rebuild after the catastrophic floods, Finance Minister Swarnim Wagle told Reuters, as the death toll along the Nepal-Tibet border has risen to 626 and rescue efforts stretch into their fourth day. Across the border in Tibet, Chinese authorities report five deaths and 558 people still missing.

The International Federation of Red Cross and Red Crescent Societies said it has mobilised its entire global network and launched an emergency appeal for CHF 25m (£23m; $31m) to fund the immediate response.

Here are five key points on the developing situation:

• Death toll reaches 669, more than 2,400 missing, says Nepal Police
• Hong Kong has earmarked HK$50 million (more than Rs 60 Crore) for flood relief.
• The Nepal Tourism Board said 184 foreign nationals have been rescued following the flash floods, including 114 Indians.
• Canada has pledged C$5m (£2.7m) in support, while New Zealand is contributing NZ$1m to the Nepal Red Cross Society and another NZ$1m to other aid groups.
• 6 Indian forensic experts are also expected to reach Kathmandu to assist with DNA analysis for identification of mortal remains