The sanctions, announced on Thursday, will include restrictions on U.S. exports and the suspension of U.S. government lines of credit to Sudan.

The United States government has imposed sanctions on Sudan after formally determining that the Sudanese army used chemical weapons in 2024 during its ongoing war with the paramilitary Rapid Support Forces (RSF).

The sanctions, announced on Thursday, will include restrictions on U.S. exports and the suspension of U.S. government lines of credit to Sudan.

The measures are expected to take effect around June 6, following notification to Congress, Reuters reports.

State Department spokesperson Tammy Bruce, in a statement, said the move was in line with U.S. obligations under the Chemical and Biological Weapons Control and Warfare Elimination Act of 1991.

"The United States calls on the Government of Sudan to cease all chemical weapons use and uphold its obligations under the CWC," Bruce said, referring to the Chemical Weapons Convention.

She added, "The United States remains fully committed to hold to account those responsible for contributing to chemical weapons proliferation."

Sudan's government rejected the allegations and condemned the U.S. decision.

“This interference, which lacks any moral or legal basis, deprives Washington of what is left of its credibility and closes the door to any influence in Sudan,” said government spokesperson Khalid al-Eisir on Friday.

The New York Times had earlier reported, citing senior U.S. officials, that the Sudanese army deployed chemical weapons, including chlorine gas, at least twice in remote areas during the conflict.

However, the U.S. statement did not provide specific details on the type, timing, or location of the alleged attacks.

A Sudanese diplomatic source criticised the decision, saying, “The intention here is to distract from the recent campaign in Congress against the UAE.”

The source also faulted the U.S. for not referring the matter to the Organisation for the Prohibition of Chemical Weapons.

The war in Sudan, which began in April 2023, has led to widespread violence, famine, and the displacement of over 13 million people. Tens of thousands have been killed in the conflict, which pits the Sudanese army against the RSF.

In January, the U.S. imposed sanctions on army chief Abdel Fattah al-Burhan, accusing him of preferring war over peaceful negotiations.

The U.S. has also sanctioned RSF leader General Mohamed Hamdan Dagalo, also known as Hemedti, and other RSF-affiliated figures for their alleged involvement in genocide.

Tensions between Sudan and the United Arab Emirates have also escalated, with Sudan this week accusing the UAE of launching a direct military attack on Port Sudan. The UAE has denied the allegation and reaffirmed its support for humanitarian and peace efforts.