Jakarta: It's hard to comprehend it happened in this century: human slaves trapped on fishing boats being whipped with poisonous stingray tails, having ice blocks thrown at them and being shot.

"If Americans and Europeans are eating this fish, they should remember us," says Hlaing Min, 30, a runaway slave from Benjina, a remote fisheries weight station in eastern Indonesia's Aru Islands.

"There must be a mountain of bones under the sea. ... The bones of the people could be an island, it's that many."

In 2015 more than 1300 foreign fisherman from Myanmar, Cambodia, Thailand, and Laos were rescued from Benjina and Ambon, after an Associated Press investigation revealed the brutal conditions aboard many foreign vessels reflagged to operate in Indonesian waters.