On 9 June she and the flotilla were in action against German warships. Though the German destroyers and were sunk, "Tartar" was damaged by return fire. Her galley and bridge were hit and set on fire. Four men were killed and twelve wounded including Commander Jones. Her foremast hung over the side and all of the radar and communications were dead. She returned to Devonport briefly to undergo temporary repairs, before resuming operations in the English Channel. On 7 July she intercepted and engaged minesweepers of the 46th German Flotilla off the Channel Islands and sank the minesweepers "M4601" and "M4605". On 6 August "Bellona", "Tartar", and the Canadian destroyers and attacked a convoy off Saint-Nazaire, sinking the minesweepers M263 and M486, the patrol boat "V414" and a coastal launch together with four small ships.