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Activists say US-led coalition warplanes strike Islamic State group positions in Syria

  • Residents of Mursitpinar on the outskirts of Suruc, at the Turkey-Syria border, watch as thick smoke rises following an airstrike by the US-led coalition in Kobani, Syria while fighting continued between Syrian Kurds and the militants of Islamic State group, Tuesday, Oct. 14, 2014. Kobani, also known as Ayn Arab, and its surrounding areas, has been under assault by extremists of the Islamic State group since mid-September and is being defended by Kurdish fighters. (AP Photo/Lefteris Pitarakis)

    Residents of Mursitpinar on the outskirts of Suruc, at the Turkey-Syria border, watch as thick smoke rises following an airstrike by the US-led coalition in Kobani, Syria while fighting continued between Syrian Kurds and the militants of Islamic State group, Tuesday, Oct. 14, 2014. Kobani, also known as Ayn Arab, and its surrounding areas, has been under assault by extremists of the Islamic State group since mid-September and is being defended by Kurdish fighters. (AP Photo/Lefteris Pitarakis)  (The Associated Press)

  • Thick smoke rises following an airstrike by the US-led coalition in Kobani, Syria while fighting continued between Syrian Kurds and the militants of Islamic State group, as seen from Mursitpinar on the outskirts of Suruc, at the Turkey-Syria border, Tuesday, Oct. 14, 2014. Kobani, also known as Ayn Arab, and its surrounding areas, has been under assault by extremists of the Islamic State group since mid-September and is being defended by Kurdish fighters. (AP Photo/Lefteris Pitarakis)

    Thick smoke rises following an airstrike by the US-led coalition in Kobani, Syria while fighting continued between Syrian Kurds and the militants of Islamic State group, as seen from Mursitpinar on the outskirts of Suruc, at the Turkey-Syria border, Tuesday, Oct. 14, 2014. Kobani, also known as Ayn Arab, and its surrounding areas, has been under assault by extremists of the Islamic State group since mid-September and is being defended by Kurdish fighters. (AP Photo/Lefteris Pitarakis)  (The Associated Press)

  • Smoke rises following an airstrike by the U.S.-led coalition in Kobani, Syria as fighting continues between Syrian Kurds and the militants of Islamic State group, as seen from Mursitpinar, on the outskirts of Suruc, at the Turkey-Syria border, Tuesday, Oct. 14, 2014. Kobani, also known as Ayn Arab, and its surrounding areas, has been under assault by extremists of the Islamic State group since mid-September and is being defended by Kurdish fighters. (AP Photo/Lefteris Pitarakis)

    Smoke rises following an airstrike by the U.S.-led coalition in Kobani, Syria as fighting continues between Syrian Kurds and the militants of Islamic State group, as seen from Mursitpinar, on the outskirts of Suruc, at the Turkey-Syria border, Tuesday, Oct. 14, 2014. Kobani, also known as Ayn Arab, and its surrounding areas, has been under assault by extremists of the Islamic State group since mid-September and is being defended by Kurdish fighters. (AP Photo/Lefteris Pitarakis)  (The Associated Press)

Activists say the U.S.-led coalition has launched several airstrikes on positions of Islamic State group militants in northern and eastern Syria, most on the town of Kobani near Turkey.

The Britain-based Syrian Observatory for Human Rights and the Local Coordination Committees say some of the airstrikes targeted the eastern town of Mayadeen.

The Observatory said the airstrikes struck oil refineries near Mayadeen, sparking a huge fire.

The group and Idriss Nassan, a local Kurdish official from Kobani, said Tuesday that intense airstrikes hit members of the Islamic State group around the town.

Nassan said Kurdish militiamen captured the Tel Shair hill that overlooks the town and brought down the black flag of the Islamic State group.

Kobani has been under attack for about a month.