Members of Libyan forces allied with the U.N.-backed government fire their weapons during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





A member of Libyan forces allied with the U.N.-backed government fires a weapon on a pickup truck during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





A member of Libyan forces allied with the U.N.-backed government runs for cover during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





A member of Libyan forces allied with the U.N.-backed government fires a weapon during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





Smoke rises as fighters of Libyan forces allied with the U.N.-backed government run for cover during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





Smoke rises as members of Libyan forces allied with the U.N.-backed government gather during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





Smoke rises as fighters of Libyan forces allied with the U.N.-backed government run for cover during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





Smoke rises as members of Libyan forces allied with the U.N.-backed government gather during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





Fighters of Libyan forces allied with the U.N.-backed government take up position during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





A member of Libyan forces allied with the U.N.-backed government walks during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





Smoke rises as fighters of Libyan forces allied with the U.N.-backed government run for cover during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya, October 27, 2016. (Photo by Hani Amara/Reuters)





Members of Libyan forces allied with the U.N.-backed government fire a weapon on a pickup truck during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





Fighters of Libyan forces allied with the U.N.-backed government take cover during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya, October 27, 2016. (Photo by Hani Amara/Reuters)





A fighter of Libyan forces allied with the U.N.-backed government runs for cover during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya, October 27, 2016. (Photo by Hani Amara/Reuters)





Fighters of Libyan forces allied with the U.N.-backed government walk during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)





A member of Libyan forces allied with the U.N.-backed government aims his weapon during a battle with Islamic State militants in Giza Bahreya, in Sirte, Libya October 27, 2016. (Photo by Hani Amara/Reuters)