According to the U.S. Treasury Department, the United States and Britain on Wednesday slapped new penalties on individuals in Turkey and abroad who have ties to the violent Palestinian organization Hamas.

According to a statement from the Treasury, the penalties are aimed at eight individuals who support Hamas’ goals and objectives overseas and assist in handling its finances.

According to Brian Nelson, under secretary of the Treasury for Terrorism and Financial Intelligence, “Hamas continues to rely heavily on networks of well-placed officials and affiliates, exploiting seemingly permissive jurisdictions to direct fundraising campaigns for the group’s benefit and funneling those illicit proceeds to support its military activities in Gaza.”

Several of the Hamas officials targeted were based in Turkey, including one of the group’s key financial operatives there, Haroun Mansour Yaqoub Nasser Al-Din, Treasury said.

Haroun Nasser Al-Din has been involved in a network that transferred money from Turkey and Gaza to the Hamas command center in the West Bank city of Hebron, it said, and helped subsidize Hamas activities to further unrest in the West Bank.