Apartment Building, Residential Bethesda, MD – Sprinkler system keeps fire away from residents in overnight apartment blaze February 2, 2015 viking210 Firefighters were called to the Bethesda Hill Apartment building at 5114 Dudley Lane shortly after 3 a.m. by a guest at the Bethesda Marriott located across the street. All occupants quickly got out of the building, but the fire had spread considerably through void and empty spaces, MCFRS spokesperson Pete Piringer said Piringer said the building’s sprinkler system effectively prevented the fire from spreading to the building’s living spaces. Piringer said it appears to have started with a dryer and nearby combustible material before quickly spreading to duct work in the walls, ceilings and floors between the second and third floors.