SAN BERNARDINO On Tuesday June 19th, around 3:07pm, San Bernardino County Fire Department responded to reports of a structure fire in the 1100 block of N. Medical Center Dr. Upon arrival, fire personnel found a house that was completely involved. Fire personnel immediately began an attack on the fire. The house appears to be a vacant house. It took fire crews about an hour to knock down the fire. No injuries have been reported. Police and fire investigators have a female detained at the scene, who is believed to be the person who started the fire.