Do I need to remove my sink to fix a leak?

[extraT]

Stupid situation.

A leak is coming from the water pipes supplying my kitchen sink. The position of the pipes mean I can’t even get my fingers in the hole (ooer) to tighten anything. The tap looks to be one unit secured to the sink which of course is fixed into the worktop. There doesn’t seem to be a screw to remove the tap so I could then replace the pipe.Pics below.

Any ideas on how I can get to the pipes? Or do I need to call a man?

[extraT]

Great lurking!

But I can’t see a pop off top

The middle part does look to somehow be removable but I can’t see how exactly…