The Trump administration is considering new steps to intensify pressure on Yemen’s Houthi rebels, including a potential foreign terrorist organization designation, according to several officials, in a bid to further isolate the group’s patron, Iran.

The officials cautioned that no decision has been made but said the administration was discussing several possible moves, which could also include naming individual Houthi leaders as “global terrorists.” Like others, they spoke on the condition of anonymity to discuss internal deliberations.

The terrorist organization designation would make it illegal to provide support to the Houthis, ban members from traveling to the United States and freeze the group’s financial assets. Those actions would have a largely symbolic effect because of the rebels’ already isolated status but could make it more difficult for aid organizations to provide relief in the country.

Read more: Washington Post