The US on Monday imposed sanctions on an individual it accused of acting as a financial facilitator for Islamic State’s Afghanistan branch, in a move that follows a series of attacks in Kabul.

The US treasury department said it blacklisted Ismatullah Khalozai, accusing him of operating a Turkey-based money-moving network to transfer funds to finance the IS-Khorasan province.

The state department on Monday also designated three men as Specially Designated Global Terrorists for their roles as leaders of the Afghan affiliate of the Islamic State.

“Today’s designation underscores the US’s determination to prevent ISIS-K and its members from exploiting the international financial system to support terrorist acts in Afghanistan and beyond.”