maytag bottom freezer leaking water inside

Have noticed frozen pool of water inside freezer. Removed frozen food and cleaned out frozen puddle. Turned off ice maker and water still pools and freezes. Cannot tell where water is coming from. This model has an inside water dispenser in the fridge (above freezer) also, but we have not noticed any water in the fridge. Freezer temp set at 0 and humidity control is on. Any suggestions?