[RESOLVED] How to clear a pPanel of its PictureBoxes?

I've one last error in my program I'm trying to fix for when I switch user accounts. I need to clear all the PictureBoxes from the panel that encloses them (PictureBoxes are created with a for loop during runtime when the form is loaded). I've been trying to find a way to just clear the panel, but haven't found any solutions yet. Any suggestions? Will I have to reference the PictureBoxes themselves?

Any assistance is greatly appreciated and thanks to everyone who's helped me so far, I'm nearly done with my program.