There are Partisan groups all over the place,Crimea included.
They like picking of the so called big boys of the Russian command.
They are informing Ukrainian command on a regular basis with targets and coordinates.
One of the groups "Atesh" actually worked on the defence lines,in Crimea.
When i say worked on,i mean as actual workers.
They copied the plans ,layout,firing positions etc,and passed them on to Ukrainian command.
Any supply routes having train tracks etc,blown up,is all Partisan work.
Brave people,mixing with Russians one minute,slotting them the next.
They will get to ALL their targets eventually,especially traitors.
Slava Ukraini.