There have been a couple of developments here that have taken us and have perhaps taken the police teams by surprise.
At the very edge of the wasteland where officers are searching are a couple of white tents.
Under them is a hole. They found it yesterday, it was covered by a couple of sheets of corrugated iron and then that was covered by some soil.
They dug away and they pulled these sheets apart yesterday and they found this very precise hole in the shape of a square - now, that's of interest to them, they didn't know it was there.
We've seen a couple of police officers in forensic suits inside those tents, we don't know what they've found, we don't know if it is of specific interest but we do know it's something they didn't anticipate when they got here
Police have shifted their investigation from the centre of the town where Madeleine McCann went missing to an area of scrubland a mile away.
Madeleine McCann search police are focusing on an area where ground-penetrating radar equipment has picked up an image beneath the soil.
Seven years on from Madeleine McCann's disappearance, British detectives are in Portugal to meet with police.