rm: httpd-modsec2_debug.log: Operation not permitted

[Swe Gill]

Hello there

Can anybody help me to solve this problem. I am running freebsd 7 with
Apache (with mod_secuirty) and Mysql with RAID10.

The Log files have become so huge that server ran out of space.

Now, I want to remove the log files but I am unable to remove. Here is the
messages:

-rw-rw----  1 root  wheel    53961237001 Jan 13 09:22
httpd-modsec2_audit.log
-rw-rw----  1 root  wheel     3396921421 Jan 13 09:22
httpd-modsec2_debug.log

fbsdserver# rm httpd-modsec2_debug.log
rm: httpd-modsec2_debug.log: Operation not permitted

fbsdserver# rm -f httpd-modsec2_debug.log
rm: httpd-modsec2_debug.log: Operation not permitted

I will appreciate any help.,..

Thanks

s