I've read a number of reports about how many were killed, but no reports on how many were rescued. This report says there is no information about survivors. I think there aren't any survivors - or, as you suggest, if there are, they won't be survivors for long.
It just seems we my not know what the heck really happened here, given our own govt has questionable ethics and loyalties. To be fair, Algeria may care more about the foreigners as they help their economy. Obama was re-elected. What does he care anymore?