On 13 September the submarine received orders permitting her to sail to England if possible, and otherwise to be interned in a neutral Swedish port. The crew at first decided to sail for England but over the next few days the ship's condition deteriorated further, with serious leaks into the ship when submerged, and the submerging itself taking up to 30 minutes, unacceptably long if the ship was to successfully pass through German patrols on the way to England. On 15 September her commander decided to sail for Sweden. On 17 September the submarine appeared off Stockholm and requested permission to enter the harbor to carry out repairs. These were clearly so extensive that they could not be finished in the limited time allowed under international law, so the submarine's commander decided that the ship should be interned by the Swedish authorities. In late September the ship was disarmed and her propulsion systems disabled.