The submarine passed close under the stern, steered to the starboard side, then recrossed the stern to the port side, and when she was some fifty yards off on the port beam her conning tower appeared on the surface and she steered to pass round the stern again and towards one of the ship's boats on the starboard beam.

She then came completely to the surface within one hundred yards, and Captain Campbell disclosed his true character, opened fire with all guns, hitting the submarine at once and continuing to hit her until she sank.

One officer and one man were saved.

The decoy ship lost one man killed, and one officer was wounded by the explosion of the torpedo.
As in the case of the action on February 17 the distinguishing feature of this exploit was the great restraint shown by Captain Campbell in withholding his fire although his ship was so seriously damaged.

The gallantry and fine discipline of the ship's company, their good shooting and splendid drill, contributed largely to the success.