Fuel leak

I have just notice a leak on my Xantia Turbo Diesel 1.9 (1994). I looks like it may be coming from the fuel return pipe at the back of the engine.
Does anyone have any advice on tackling such a leak or is it just a case of taking the pipes off and having a good ferret around.
Thanks in advance Neil
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.