Can't delete folder from datastore

I was running a P2V job from VMware converter and the job failed 3 times. It did create the directories in the datastore with the VM name and only the vmdk file. However, I can't delete the directory. It fails when I try to delete it on any of them. Can anyone tell me how I can get rid of these?

These are esxi 4.1 in a cluster.

Thanks,

Scott