debian testing security Release.gpg broken?

When i did an apt-get update on a mixed etch/sid system last night (and again this morning), i got a couple errors:

[0 root@squeak ~]# apt-get update ... Get:3 testing/updates Release.gpg                    ...Hit testing/updates Release                         Err testing/updates Release                           Get:4 testing/updates Release [24.3kB] ...Hit testing/updates/main Sources    Fetched 24.3kB in 3s (7830B/s)                                 Reading package lists... DoneW: GPG error: testing/updates Release: Unknown error executing gpgvW: You may want to run apt-get update to correct these problems[0 root@squeak ~]#

Fetching the files by hand shows the problem. Release.gpg appears to be empty for the testing security archive at the moment!

[0 dkg@squeak tmp.rwonk22339]$ wget -q[0 dkg@squeak tmp.rwonk22339]$ wget -q[0 dkg@squeak tmp.rwonk22339]$ ls -ltotal 24-rw-r--r-- 1 dkg dkg 24305 2006-06-29 23:38 Release-rw-r--r-- 1 dkg dkg     0 2006-06-29 23:38 Release.gpg[0 dkg@squeak tmp.rwonk22339]$

Does anyone know why this is? Is there anything i can do to help sort things out?