In Amenas is operated by the Algerian company Sonatrach with BP and Statoil Islamist militants have attacked and occupied a gas facility in Algeria, killing a Briton and an Algerian and taking foreign workers hostage.Algerian Interior Minister Daho Ould Kabila said troops had surrounded the living quarters at In Amenas, where some 20 people were being held.Norwegian, French, British, US and Japanese citizens are among them.Mr Ould Kabila said the militants wanted to leave Algeria with the hostages, which he would not allow.Earlier, the AFP news agency quoted one worker as saying the militants had demanded the release of 100...