illegal logo usage

A web site by Holland’s Istanbul Consulate is illegally using your logo in an insecured web page.
http://www.avrasyabisikletgezisi.com/OdemeMaraton.aspx

and logo is
http://www.avrasyabisikletgezisi.com/images/secured.jpg

Please be warned and warn them. Site is about a cycling trip which will be held this weekend so may you please be quick.