Can't delete storage account / resource group

Hi,

I deleted a resource group that contained a running VM. Despite the fact I've successfully done this before, this time around it deleted everything except the storage account for the VM and the resource group is stuck in "Deleting" state.

I tried to manually delete the storage account, which failed because it still had an active lease on the os disk. I have cleared the lease and deleted the .vhd and I still can't delete the storage account (same error) and the resource group is still stuck in the deleting state.

What can I do to fix this?

Thanks