
On Friday rescuers had been battling to stop the creatures' skin from drying out as they lay on a beach in Hokota, about 100 kilometres north-east of Tokyo, while some were being carried in slings back towards the ocean.
But as darkness fell, local officials in Hokota called off the rescue effort. They said they had only been able to save three of the animals that had beached.
The rest of the creatures, a member of the dolphin family usually found in the deep ocean, had either died or were dying, they said.
"It was becoming dark and too dangerous to continue the rescue work at this beach, where we could not bring heavy equipment," said an unnamed Hokota city official.












Comment: See also: Revenge of the seals: Marine mammals seen killing and eating sharks off the coast of South Africa