BIDUR (Nepal) — Nepali rescue teams battled difficult terrain, an unpredictable river and treacherous marshland today, the sixth day in their search for survivors and victims of devastating floods.

The catastrophic flooding has killed more than 900 people, while the number of people unaccounted for has also risen, reaching more than 4,793 today.

“There are too many challenges,” said E. Hawadi, a police officer coordinating rescue efforts in the badly affected Nuwakot district.

“There are no roads, they have all been washed away, and many areas are just not accessible,” he told AFP.

Floodwaters remained high in some areas. Elsewhere, the ground had turned into slushy mud, slowing movement and complicating operations.

“It is very difficult for my men. The area is still flooded, and elsewhere it is all marshland,” Hawadi said.

Entire communities have been swept away, leaving families homeless in heavy rain or sheltering in temporary facilities.

Unidentified bodies are being buried in mass graves after DNA sampling.