Survivors report that Thai authorities are sending refugees from Myanmar and Bangla Desh, who arrive by boat, back to the sea, with no engine, and often with no supplies and their hands tied as well, in an obvious attempt to kill them.
Many have been rescued from a certain death by Indian coastguards near Andaman islands.
Update: also from BBC. Further details have emerged: at least 800 people were left adrift that way and many hundreds may have died. Some were simply exemplarily thrown overboard with hands and feet tied to persuade the rest to get on the barge. The macabre operation was done by the highly secretive and powerful Internal Security Operations Command, which is, contitutionally, under the direct control of the Prime Minister. .