Overnight Ladder 98 staffed by the in-station duty crew was dispatched assisting the Liberty Fire Company on a reported mobile home fire in East Vincent Township. Ladder 98 made the response arriving in tandem with Ladder 63 to find nothing evident from the outside of the structure. Crews entered and found evidence of a fire that had been extinguished prior to fire personnel arrival. The incident remains under investigation. Also onscene from RFD was MICU 83-4, the Advanced Life Support ambulance stationed in Spring City, Chester County.