Live updates: Hundreds of hydropower workers among the missing after devastating floods in Nepal and China | CNN

Rescue efforts are in their fourth day. Nepali authorities warn they are struggling to cope with the number of decomposing bodies recovered.

• Dayslong rescue effort: Around 3,000 people are still missing after this week’s catastrophic flash flooding on the Nepal-China border. Nearly 900 Nepali hydropower workers are unaccounted for and may be trapped in remote tunnels.

• Grim toll: More than 670 people have been killed in Nepal and at least seven in China, where official reports have been slow to come out of Tibet. Nepali authorities are struggling to cope with the mounting number of recovered bodies.

• Agonizing wait: Families gather daily at medical centers and morgues to search for information on victims. Loved ones in the US and several other countries await word on missing travelers.

• On the ground: CNN teams have witnessed devastated homes and villages buried in sludge. There’s been no sign of survivors at a Chinese border crossing, where a child’s toy bunny serves as a searing reminder of the families impacted.