Reports from the scene indicate that the crash was triggered by a reckless overtaking attempt involving one of the speeding trucks. The two lorries collided side-on, resulting in severe damage and the instant deaths of the drivers. Authorities confirmed that no additional injuries were reported, although the drivers' bodies remained trapped in the mangled wreckage for some time after the impact.

The section of the Southern Bypass where the accident occurred is notorious for frequent crashes and high fatality rates, particularly among pedestrians crossing from nearby Kibra and Langata neighbourhoods. Langata traffic police quickly responded to the scene, cordoned off the area, launched an investigation, and worked to clear the resulting traffic congestion on this busy highway. The bodies are expected to be transferred to the city mortuary following completion of necessary formalities.