Explosions have been heard at the Port of Sudan, a critical lifeline and entry point for aid, as attacks on the city continued for a fourth day in the latest confrontation between Sudanese Armed Forces (SAF) and the paramilitary Rapid Support Forces (RSF) in the country’s brutal two-year civil war.

Sudan's army said its anti-aircraft systems intercepted drones targeting a naval base in the wartime capital Port Sudan on Wednesday. Explosions were heard in the city, though it was not immediately clear whether they were near the Flamingo base.