WASHINGTON: The United States on Monday imposed sanctions on three leaders of Islamic State’s Afghanistan branch and another man it accused of acting as a financial facilitator for the group, in a move that follows a series of attacks in Kabul claimed by the militant group.

The State Department on Monday named the group’s emir, Sanaullah Ghafari, spokesperson Sultan Aziz Azam and Kabul province leader Maulaw Rajab as Specially Designated Global Terrorists, Secretary of State Antony Blinken said in a statement. The US Treasury Department also blacklisted Ismatullah Khalozai, accusing him of operating a Turkey-based informal money-moving network, known as a hawala, to transfer funds to finance the Islamic State-Khorasan Province.

“Today’s designation underscores the United States’ determination to prevent ISIS-K and its members from exploiting the international financial system to support terrorist acts in Afghanistan and beyond,” said Andrea Gacki, director of the Treasury’s Office of Foreign Assets Control, using a common name for Islamic State-Khorasan Province.

The U.N. envoy to Afghanistan last week delivered a bleak assessment of the situation following the Taliban takeover, saying that the affiliate of the Islamic State group has grown and now appears present in nearly all 34 provinces.