Disappearance of Madeleine McCann
The wells are believed to be around 10 miles from the Praia da Luz resort Madeleine disappeared from on May 3, 2007.
German prosecutors said Christian B is being investigated “on suspicion of murder”.
The reports come on the 12th anniversary of Maddie’s disappearance.
The family say the series could hinder the hunt for their daughter.
He described his “almost feral reaction” when he realised she was missing.
Open letter to PM and all MPs published on HuffPost UK
Kevin Halligen denied that donated money was used to pay for first-class travel and luxury hotel suites.
It's been more than 10 years since the three-year-old disappeared in Portugal.
Reports had suggested probe was over.