(AP) - Algeria's prime minister says 37 foreign hostages were killed during the four-day-long standoff at a natural gas plant, and that at least one Canadian was among the Islamist militants who took hundreds hostage.

Abdelmalek Sellal said Monday kidnappers came from Egypt, Canada, Mali, Niger, Mauritania and Tunisia.

Algerian forces stormed the site, killing 32 militants and gained control on Saturday.

Sellal said three kidnappers were captured.