Earlier today on Box 1834 an additional Engine & Truck were requested to assist on a Tugboat on Fire in the Delaware River area of Penns Beach. Ladder 28, Engine & Chief 22 responded to the Port of Wilmington to be transported to the scene via a work boat from the Delaware Launch Service. Crews boarded the ship with additional SCBA cylinders & equipment along with our personnel were being sent to provide relief for the first due companies. Upon arrival the fire was contained and companies were placed in service. The was a multi-agency response operating under a Unified Command. Chief 18 (Majewski) had the New Castle Command