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US-led coalition hits oil sites held by IS group in eastern Syria for 2nd day, activists say

  • In this framegrabbed image provided by the U.S. Department of Defense shows airstrike footage on the Jeribe West Refinery in Syria Wednesday Sept. 24, 2014. The strikes aimed to knock out one of the militants' main revenue streams _ black market oil sales that the U.S. says earn up to $2 million a day for the group. (AP Photo/Department of Defense)

    In this framegrabbed image provided by the U.S. Department of Defense shows airstrike footage on the Jeribe West Refinery in Syria Wednesday Sept. 24, 2014. The strikes aimed to knock out one of the militants' main revenue streams _ black market oil sales that the U.S. says earn up to $2 million a day for the group. (AP Photo/Department of Defense)  (The Associated Press)

  • In this photo provided by an anti-Bashar Assad activist group Edlib News Network (ENN), which has been authenticated based on its contents and other AP reporting, anti-Syrian government protesters carry flags of the al-Qaida-affiliated Nusra Front, left, and Islamic State group, right, during a demonstration against the U.S.-led coalition airtstrikes, at Maarat Masrin town, in Idlib province, northern Syria, Friday Sept. 26, 2014. In towns and villages controlled by Syria’s mainstream rebel factions, the airstrikes have garnered mixed reactions. Most people appear to condone hitting the Islamic State group, but question why President Bashar Assad’s forces which have killed thousands of people in the civil war _ remain untouched. (AP Photo/Edlib News Network ENN)

    In this photo provided by an anti-Bashar Assad activist group Edlib News Network (ENN), which has been authenticated based on its contents and other AP reporting, anti-Syrian government protesters carry flags of the al-Qaida-affiliated Nusra Front, left, and Islamic State group, right, during a demonstration against the U.S.-led coalition airtstrikes, at Maarat Masrin town, in Idlib province, northern Syria, Friday Sept. 26, 2014. In towns and villages controlled by Syria’s mainstream rebel factions, the airstrikes have garnered mixed reactions. Most people appear to condone hitting the Islamic State group, but question why President Bashar Assad’s forces which have killed thousands of people in the civil war _ remain untouched. (AP Photo/Edlib News Network ENN)  (The Associated Press)

  • In this Tuesday, Sept. 23, 2014, photo, released by the U.S. Air Force, Maj. Gena Fedoruk, a KC-135 Stratotanker pilot with the 340th Expeditionary Air Refueling Squadron, pre-flights her aircraft before taking off from a base in the U.S. Central Command area of responsibility in support of a mission conducting airstrikes in Syria. U.S.-led coalition warplanes bombed oil installations and other facilities in territory controlled by Islamic State militants in eastern Syria on Friday, Sept. 26, 2014, taking aim for a second consecutive day at a key source of financing that has swelled the extremist group's coffers, activists said. (AP Photo/U.S. Air Force, Matthew Bruch)

    In this Tuesday, Sept. 23, 2014, photo, released by the U.S. Air Force, Maj. Gena Fedoruk, a KC-135 Stratotanker pilot with the 340th Expeditionary Air Refueling Squadron, pre-flights her aircraft before taking off from a base in the U.S. Central Command area of responsibility in support of a mission conducting airstrikes in Syria. U.S.-led coalition warplanes bombed oil installations and other facilities in territory controlled by Islamic State militants in eastern Syria on Friday, Sept. 26, 2014, taking aim for a second consecutive day at a key source of financing that has swelled the extremist group's coffers, activists said. (AP Photo/U.S. Air Force, Matthew Bruch)  (The Associated Press)

Activists say airstrikes have targeted oil installations and other facilities in territory under the control of Islamic State militants in eastern Syria for a second consecutive day.

The Britain-based Syrian Observatory for Human Rights says the strikes in Deir el-Zour province overnight and early Friday are believed to have been carried out by the U.S.-led coalition against the extremist group.

The Observatory says the strikes hit at least two oil producing areas in Deir el-Zour province overnight. It says air raids also targeted the headquarters of the Islamic State group in the town of Mayadeen early Friday.

Another activist collective, the Local Coordination Committees, also reported four strikes on Mayadeen that it says were conducted by the coalition.