South Sudan’s government has grounded four aircraft registered under the United Nations Mission in South Sudan (UNMISS), accusing the planes of being used for illegal surveillance and smuggling activities, in a move that has raised fresh tensions between Juba and the UN.
Authorities said the decision was taken after security agencies detected what they described as unauthorised aerial operations and suspicious cargo movements involving the aircraft. Officials alleged that the planes were collecting sensitive information and transporting undeclared items in violation of national laws and aviation regulations.
The United Nations has strongly denied the accusations, describing them as unfounded and stressing that all UNMISS air operations are conducted transparently and strictly in line with its mandate. A UN spokesperson said the aircraft are used exclusively to support peacekeeping duties, including troop movements, humanitarian access, medical evacuations, and the protection of civilians across the country.
The grounding of the aircraft comes at a delicate moment for South Sudan, which continues to struggle with political instability, intercommunal violence, and delays in implementing key provisions of the 2018 peace agreement. UNMISS plays a central role in supporting the peace process, monitoring ceasefires, and facilitating humanitarian operations in remote and conflict-affected areas.
Diplomatic sources say the standoff could disrupt critical UN activities, particularly in regions where access by road is limited or unsafe. Humanitarian agencies rely heavily on UN air assets to reach vulnerable populations, deliver aid, and evacuate staff during emergencies.
The South Sudanese government has in recent years expressed growing frustration with aspects of the UN mission, accusing it of overstepping its mandate and interfering in internal affairs. The UN, however, maintains that its presence is vital for preventing further violence and supporting long-term stability.
Negotiations are reportedly ongoing between South Sudanese authorities and UN officials to resolve the issue and allow the aircraft to resume operations. Observers warn that a prolonged dispute could undermine trust between the government and international partners, with potential consequences for security and humanitarian efforts across the country.
