Unable to delete docker images

I recently upgraded from fedora 29 to Fedora 32. On Fedora I had pulled docker image of fedora 29. Right now I have two image on my fedora 32.

I want to delete these images but I cant, I even executed docket system prune -a but its still there. I also removed docker package and reinstalled it but still I see these two images. Anyone can please help me into this matter. Thanks.