Hartlepool was hit with a total of 1150 shells, killing 117 people. Two coastal defence batteries at Hartlepool returned fire, launching 143 shells, and damaging three German ships: SMS Seydlitz, SMS Moltke and SMS Blücher. The Hartlepool engagement lasted roughly 50 minutes, and the coastal artillery defence was supported by the Royal Navy in the form of four destroyers, two light cruisers and a submarine, none of which had any significant impact on the German attackers.