Scotland Yard said that "no evidence relating to Madeleine McCann has been identified" following an eight-day search in Praia da Luz, Portugal.
The Yard said: "More activity has been agreed and we expect that to commence shortly."
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.