High diesel prices in ten African countries have surged in September 2026, driven by global supply chain disruptions linked to the ongoing Iran-US conflict. The increase has significantly impacted transportation and energy sectors, raising operational costs for businesses and households. Several African nations, reliant heavily on diesel imports, face heightened economic strain as fuel prices remain elevated. The situation mirrors similar challenges in other regions affected by geopolitical tensions. Experts warn that prolonged high fuel costs could slow economic growth and increase inflationary pressures. The Iran-US war continues to influence global energy markets, affecting fuel availability and pricing worldwide.