Federation says it fears death toll of nearly 600 will continue to rise as rescuers reach cut-off areas

• Nepal-Tibet flash flood – latest updates

• Visual guide: how the deadly flooding unfolded

• Tell us: have you been affected by the flash floods?

The Red Cross has said at least 93,000 people may have been affected by Wednesday’s flash floods on the Nepal-Tibet border, which have killed nearly 600 people, left another 1,900 missing, and triggered a huge rescue operation that is being hampered by fears of new flooding.

The International Federation of Red Cross and Red Crescent Societies (IFRC), the world’s largest humanitarian network, said it feared the death toll would continue to rise as some of the hardest-hit areas remained inaccessible after roads and bridges were destroyed by the torrents.

Risk of fresh flooding had forced rescue teams to withdraw as residents rushed up hills to escape possible river surge

• Nepal-Tibet flash flood – latest updates

• Visual guide: how the deadly flooding unfolded

• Tell us: have you been affected by the flash floods?

Rescuers searching for survivors of deadly flash floods on the Nepal-Tibet border have resumed their efforts after suspending operations when a debris dam burst its bank on Friday, increasing the risk of fresh flooding.

Residents in Nepal’s Rasuwa district, on the border with Tibet, were seen rushing up hillsides ⁠on Friday to escape a possible surge in the river, ⁠according to witnesses. Fears of another flood came as authorities in Nepal and China said that at least 543 people had been killed in the disaster.