The operation will continue after having three reported observations of what could be foreign submersibles. The latest one came at 1015AM today and was accompanied by this photo:
http://i.imgur.com/nadSzLw.jpg
In conjunction with witness interviews of the persons reporting, the Swedish Navy has classified this as "Probable" subsurface activity of foreign origin, which means that the Navy will extend the operation and continue the search. They also reinforced that this is not an ASW operation, it is an intelligence gathering ops to confirm that a foreign power is operating inside Swedish territorial waters, but they also say that it could transition to an ASW op if needed. The "Probable" designation is the second highest in the Swedish Navy scale, second only to "Confirmed". This latest incident is apparently consistent with previous observations made over the span of several years, and the area is of interest to foreign powers according to the Swedish Navy.