Irmo Fire Crews responded to reports of an early morning structure fire in the 200 block of Zephyr Street. With help from our partners at Lexington County Fire Service, West Columbia Fire Department, and Columbia Fire Department, the fire is now under control. There have been no injuries and the cause is under investigation. Crews faced heavy fire conditions on arrival and had to contend with a melted gas meter and leak. The house was destroyed by the fire.