The U.S. on Friday officially designated a powerful gang coalition in Haiti as a foreign terrorist organization, raising concerns the move could deepen the country’s humanitarian crisis at a critical time.

The Viv Ansanm coalition and the Gran Grif gang will now be labeled as Foreign Terrorist Organizations and as Specifically Designated Global Terrorists by the State Department.

The US designated two powerful Haitian gangs it accused of destabilizing the country and threatening US interests as “Foreign Terrorist Organizations,” escalating pressure on the groups that control much of the country’s trade.