A magazine run by the Islamic State militant organization has published an interview with the French widow of a Paris hostage taker, its first official claim that Hayat Boumeddiene is in their territory, which spans parts of Syria and Iraq.

France launched a search for the 26-year-old after police stormed a Jewish supermarket where her partner, Amedy Coulibaly, had taken hostages, four of whom were killed along with Coulibaly. Authorities described her as armed and dangerous.

Turkish officials said last month that Boumedienne had been in Turkey five days before the shootout and crossed into Syria on Jan. 8.