Allegations that the Sudanese army used chemical weapons during the country’s ongoing war are no longer confined to US statements and sanctions.

The issue is increasingly developing into a broader international and African controversy, placing Sudan’s army-dominated authorities in Port Sudan under mounting political, legal and media pressure.

This shift has become particularly visible as prominent African news organizations begin covering the allegations.

Nigeria’s widely read Vanguard newspaper reported on the latest US sanctions against Sudan, linking them to Washington’s determination that the Sudanese government violated the Chemical Weapons Convention by using prohibited weapons in 2024.

The significance of the Nigerian coverage extends beyond repeating the US position. It brings the issue into the African media sphere after months in which it was primarily discussed by Western institutions and news organizations.

That expanded attention could increase the political cost of the allegations for the Sudanese army and the authorities operating from Port Sudan.

Vanguard reported that the sanctions, which took effect on July 20, expanded restrictions on exports and financing. They also require the United States to oppose loans and financial assistance for Sudan through international financial institutions.

The newspaper said the measures followed Washington’s conclusion that Sudan had violated its obligations under the Chemical Weapons Convention.

Another prominent Nigerian newspaper, Punch, also covered the issue, noting that the sanctions were based on allegations that Sudan’s army-dominated government used chemical weapons during its war against the Rapid Support Forces.

The report also revisited earlier accusations that the Sudanese army used chemical substances against civilians in Darfur.

Coverage by two major Nigerian newspapers suggests that the issue is gradually moving beyond a bilateral dispute between Washington and Port Sudan.

It is increasingly becoming part of an African debate involving civilian protection, legal accountability and governments’ obligations under international rules prohibiting chemical weapons.

Pressure Beyond Sanctions

The United States announced a second round of sanctions after saying the Port Sudan authorities had failed to take the necessary steps to address the alleged violation and return to compliance with the Chemical Weapons Convention.

The measures included ending some forms of non-humanitarian assistance, imposing additional restrictions on exports, financing and military cooperation, and opposing Sudanese access to loans from international financial institutions.

The dispute has therefore moved beyond political condemnation.

The practical restrictions could limit the Port Sudan authorities’ access to funding, technology and international cooperation while making it more difficult to restore diplomatic recognition and foreign partnerships.

Washington has also intensified its efforts within the Organisation for the Prohibition of Chemical Weapons, calling for independent international inspections and an investigation.

US officials have argued that the internal procedures announced by the Sudanese authorities cannot replace neutral international verification.

The United States told the organization’s Executive Council that chemical weapons were used in Sudan in 2024 in violation of the convention.

Britain has also called on the Sudanese authorities to disclose the findings of their investigations and cooperate with international mechanisms.

Continued denial and refusal to permit an independent investigation could strengthen demands for additional international measures.

Denials Fail to Contain Scrutiny

The Port Sudan authorities rejected the US sanctions and described the allegations as unproven and politically motivated. They also characterized the measures as unilateral and unlawful.

Those denials, however, have not prevented the issue from receiving wider international attention.

International media reports have revisited earlier allegations that chlorine gas was used during attacks in 2024 and connected the chemical weapons issue to a broader record of abuses affecting civilians and essential facilities.

An investigation published by France 24 presented information and evidence suggesting that chlorine gas was used near the Al-Jaili oil refinery north of Khartoum in September 2024.

US reports have also alleged that the Sudanese army used chemical weapons on at least two occasions during the war.

Sky News Arabia previously published an extensive investigation containing images and recorded testimonies from victims suspected of having been exposed to chemical substances. The investigation also included medical reports and visual evidence.

A final technical and legal determination remains the responsibility of international investigative mechanisms.

The Port Sudan authorities have continued to reject the entry of international investigation teams, reflecting their position toward the independent international fact-finding mission established by the UN Human Rights Council.

Allowing the chemical weapons watchdog to conduct an independent investigation has consequently become one of the main points of international pressure.

From a Reputational Crisis to Wider Isolation

Growing African attention comes as the Port Sudan authorities attempt to strengthen their diplomatic presence across the continent.

They have sought to present the conflict as a state confronting an armed rebellion rather than a war in which multiple parties have been accused of serious violations.

The spread of chemical weapons allegations through African media threatens that narrative.

It presents the Sudanese army as a party accused of using one of the most heavily prohibited categories of weapons under international law, rather than simply a regular military fighting a conventional war.

Repeated coverage across African platforms could encourage civil society organizations and regional rights groups to demand independent investigations and accountability.

It could also lead to calls for any political or economic engagement with the Port Sudan authorities to be conditioned on cooperation with the Organisation for the Prohibition of Chemical Weapons.

Nigerian media coverage does not mean that a unified official African position has already emerged.

It does, however, indicate that the issue has moved beyond its original US framework and is increasingly capable of generating political and public debate across the continent.

The allegations are consequently becoming part of the broader political and diplomatic image of the Port Sudan authorities, rather than remaining a bilateral dispute with Washington.

An Open Case With Rising Costs

Successive international and African reports indicate that the chemical weapons issue is becoming a persistent challenge to the Sudanese army’s reputation abroad.

It is increasingly associated with sanctions, financial restrictions, international accountability and allegations of violating the Chemical Weapons Convention.

The longer the Port Sudan authorities continue denying the allegations while refusing to cooperate with international investigation and verification mechanisms, the greater the possibility that the issue will develop into a lasting source of regional and international isolation.

It could also become an increasingly powerful instrument of pressure on Sudan’s military leadership, both internationally and within its African surroundings.