Algerian Prime Minister Abdelmalek Sellal said Monday that 37 foreign hostages of eight nationalities were killed during the four-day standoff at the In Amenas gas complex. The revised death toll, up from 23 on Saturday, followed the discovery of more bodies at the site during a demining operation Sunday. Sellal said seven of the hostages had yet to be identified. Of the 32 hostage-takers, who he said came from northern Mali, 29 were killed and three were arrested.