Falmouth Fire/Rescue reports that at approximately 9 AM Thursday morning, they responded to the Marine Resource Center, part of Marine Biological Laboratories at 125 Water Street in Woods Hole. Shortly after arrival, Engine 20 reported smoke showing from the rear of the building. A full first alarm was dispatched, bringing Engine 25 and Ladder 26 to the scene. Crews connected to the sprinkler system and advanced an attack line that they then connected to the standpipe in the stairwell. The crew made entrance to the second floor hallway and found a heavy smoke condition with a fire in a lab that was being held in check by the sprinkler system. The crew fully extinguished the fire and began ventilating the building. Firefighters remained on scene for about 90 minutes. There were no injuries, and the fire is believed to be accidental. Mutual aid from Joint Base Cape Cod and Mashpee Fire covered the Falmouth stations during the incident.