“The U.S. said Thursday it has worked with Turkey to impose sanctions on four people and two firms that it says provided financial support to the Islamic State group. The announcement signaled counterterrorism cooperation between the two countries at a time of tensions over efforts to fight Islamic State. Turkish President Tayyip Erdogan has threatened an offensive into Syria against Kurdish militants he has blamed for a deadly Nov. 13 bombing in Istanbul. That has alarmed U.S. officials. Kurdish groups have been allied with the U.S. in the fight against Islamic State group and have warned that a Turkish escalation would threaten anti-IS efforts. In its announcement Thursday, Treasury’s Office of Foreign Assets Control said it was imposing sanctions on an Iraqi national living in Turkey, Abd Al Hamid Salim Ibrahim Ismail Brukan al-Khatuni, his sons and the Turkish money service firm where they all worked. They are accused of facilitating financial transfers to and from Iraq and Syria for the benefit of the Islamic State. Another individual, Lu’ay Jasim Hammadi al-Juburi, an Islamic State financial administration official also living in Turkey, was accused of using the firm Sham Express, a company founded in 2020 by Brukan al-Khatuni, to transfer funds to ISIS.”