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Activists: US-led airstrikes in Syria hit oil installations held by Islamic State group

  • FILE - In this April, 1975 file photo, Syria opens its fourth oil field at Jbeissah, 19 miles west of the Iraq Border. Activists say that U.S.-led airstrikes have targeted Syrian oil installations held by the militant Islamic State group, killing at least five people on Thursday, Sept. 25, 2014. The Britain-based Syrian Observatory for Human Rights and two local activist collectives say the airstrikes hit refineries and oil fields in the eastern provinces of Deir el-Zour and Hassakeh.(AP Photo/Harry Koundakjian, File)

    FILE - In this April, 1975 file photo, Syria opens its fourth oil field at Jbeissah, 19 miles west of the Iraq Border. Activists say that U.S.-led airstrikes have targeted Syrian oil installations held by the militant Islamic State group, killing at least five people on Thursday, Sept. 25, 2014. The Britain-based Syrian Observatory for Human Rights and two local activist collectives say the airstrikes hit refineries and oil fields in the eastern provinces of Deir el-Zour and Hassakeh.(AP Photo/Harry Koundakjian, File)  (The Associated Press)

  • FILE - In this April, 1975 file photo, Syria opens its fourth oil field at Jbeissah, 19 miles west of the Iraq Border. Activists say that U.S.-led airstrikes have targeted Syrian oil installations held by the militant Islamic State group, killing at least five people on Thursday, Sept. 25, 2014. The Britain-based Syrian Observatory for Human Rights and two local activist collectives say the airstrikes hit refineries and oil fields in the eastern provinces of Deir el-Zour and Hassakeh.(AP Photo/Harry Koundakjian, File)

    FILE - In this April, 1975 file photo, Syria opens its fourth oil field at Jbeissah, 19 miles west of the Iraq Border. Activists say that U.S.-led airstrikes have targeted Syrian oil installations held by the militant Islamic State group, killing at least five people on Thursday, Sept. 25, 2014. The Britain-based Syrian Observatory for Human Rights and two local activist collectives say the airstrikes hit refineries and oil fields in the eastern provinces of Deir el-Zour and Hassakeh.(AP Photo/Harry Koundakjian, File)  (The Associated Press)

  • Syrian refugees enter Turkey during a sand storm at Yumurtalik crossing gate near Suruc, Turkey, Wednesday, Sept. 24, 2014. More than 200,000 people  fleeing the Islamic State militantsí advance on Kobani, Syria, arrived in Turkey over the last five days to find safety. (AP Photo/Burhan Ozbilici)

    Syrian refugees enter Turkey during a sand storm at Yumurtalik crossing gate near Suruc, Turkey, Wednesday, Sept. 24, 2014. More than 200,000 people fleeing the Islamic State militants√≠ advance on Kobani, Syria, arrived in Turkey over the last five days to find safety. (AP Photo/Burhan Ozbilici)  (The Associated Press)

Activists say that U.S.-led airstrikes have targeted Syrian oil installations held by the militant Islamic State group, killing at least five people.

The Britain-based Syrian Observatory for Human Rights and two local activist collectives say the airstrikes hit refineries and oil fields in the eastern provinces of Deir el-Zour and Hassakeh.

In one incident, the activists said at least five people were killed, including women and children who were likely the wives and children of militants, living near a refinery building.

The Observatory and activists said other airstrikes targeted the Nusra Front, a Syrian al-Qaida affiliate that has fought the Islamic State, and which is one of the most powerful groups fighting to overthrow Syrian President Bashar Assad.

Other strikes targeted Islamic State compounds, checkpoints and military vehicles.