The Molios is a Centauri liner. In 2259, the Molios was waiting to dock at Babylon 5, when the Narn transport, Na'Tan attacked and destroyed the Molios. The battle was witnessed by an Interstellar Network News crew on the Earth Alliance transport, Hyerdol.
The survivors and bodies from the vessel was brought to the station. The Narn claimed the Molios was transporting weapons to the Centauri front. An investigation from Babylon 5 confirmed the presence of weapons on the Molios.