Removing A Tall (Larder Type) Kitchen Unit

[mraich]

I would like to dismantle/remove a Tall kitchen unit which is attached to a base unit, counter top and a wall unit but I can't see how they are locked together. Want to replace it with a refrigerator. Any suggestion greatly appreciated.
mraich

[toptips]

Hi probably too late with a reply but just in case,if you cannot see anywhere that the units are fixed together remove all the shelves as fixings are put level with shelves to hide them,also take off the doors and the hinge part from the unit as its another favorite place to hide a fixing screw,finally have a look on top of the unit and you might find it has been fixed to the wall with a bracket.