These are the buildings searched by police in a last-ditch attempt to find evidence linking prime Madeleine McCann suspect Christian Brueckner to her disappearance.

A collection of sinister, ramshackle derelict barns and cottages on scrubland covering more than eight square miles, covered with thick vegetation.

With crumbling walls and covered in obscure graffiti the half dozen locations are being systematically examined by a task force of German and Portuguese police.

Searches started on Tuesday and are expected to finish by Friday as police frantically try and find some evidence to link Brueckner to Madeleine’s 2007 disappearance.

She vanished from the Ocean Club holiday complex in the Algarve resort of Praia da Luz and German police are adamant convicted rapist and paedophile Brueckner did it.