More than 30 Thoroughbreds were killed the evening of Nov. 1 in a barn fire at the Fair Hill Natural Resources Management Area in northern Maryland, the Baltimore Sun reported in its Nov. 2 edition.The state fire marshal's office said the fire was reported at about 6:40 p.m. EST and destroyed a 70-foot-by-150-foot barn that contained 35 horses. An adjacent building also was destroyed.Officials said the horses were owned by JoKyle Inc., and that the training center is leased to the corporation by the state Department of Natural Resources. At least 100 firefighters from stations in Maryland, Pennsylvania, and Delaware responded to the fire, the Sun reported.Further details were unavailable.Graham Motion, a trainer who owns an adjacent barn, told the Sun he heard about the fire and rushed to the scene. His barn was undamaged. Four horses were freed by a trainer. "It was unfortunate that we weren't able to get more out," Motion told the newspaper. "There was very little that could be done by the time they got there."The fire is under investigation.