[Updated at 5:33 p.m. ET] Algerian forces are looking to negotiate the release of remaining foreign captives, Algerian state media reports, but are holding out the threat of further action.
"The special forces of the (Algerian army) are still seeking a peaceful settlement before neutralizing the terrorist group currently entrenched in the refinery, and free a group of hostages who are still detained," according to a report by Algerian state news agency APS.
[Updated at 3:58 p.m. ET] One Frenchman was killed and three others were saved in an operation to free hostages in Algeria, the press office of the Ministry of Foreign Affairs in Paris says.
[Updated at 1:55 p.m. ET] Twelve hostages have been killed since Algerian Special Forces launched a ground operation on Thursday to free captives held by militants at a gas field complex, APS, the official Algerian news agency, reported, citing a security source.
[Updated at 1:19 p.m. ET] A U.S. State Department spokeswoman says the U.S. will not negotiate a prisoner exchange with terrorists holding captives in Algeria. It was unclear how many, if any, Americans were being held hostage.