Christian Brueckner allegedly said he wanted it built with soundproof walls- although there is no evidence to suggest he ever followed through with his idea

Christian Brueckner, suspect in the Madeleine McCann case(Image: ITALIAN CARABINIERI PRESS OFFICE)

Madeleine McCann suspect Christian Brueckner allegedly said he wanted to make a Josef Fritzl-style dungeon in his home.

Brueckner, the 43-year-old paedophile suspected of abducting and murdering Madeleine 13 years ago, said he wanted to create the dungeon in his cellar, a friend has claimed.

The suspect allegedly said he wanted it built with soundproof walls- but there is no evidence to suggest he ever followed through with his idea.

The friend, who wished to remain anonymous, told the Sun : “He had a cellar and he said he wanted to line it with heavy plates, like the guy in Austria.”

Madeleine McCann who went missing while on holiday in Portugal(Image: PA)

Brueckner ran a kiosk next to a school and kindergarten, it is claimed(Image: Daily Mirror)

He reportedly led the TV crew to the house where Brueckner was living in around 2013.

Brueckner reportedly told his friend his ‘fantasy’ while living in Brunswick, Germany, after returning from Portugal.

The anonymous friend also claimed Brueckner ran a kiosk next to a school and kindergarten in Brunswick.

Fritzl was jailed for life after it emerged he and kept his own daughter as a sex slave for 24 years in a horror dungeon(Image: AFP/Getty Images)

The garden house of a house owned by Fritzl(Image: AFP/Getty Images)

He said: “[The children] would spend their pocket money on sweets here.

“He gave the kids lollies for free.”

More than 10 years ago Fritzl was jailed for life after it emerged he and kept his own daughter as a sex slave for 24 years in a horror dungeon.

He was given a life sentence for his incestuous and disgusting crimes at his home in the town of Amstetten in the north-eastern state of Lower Austria before her ordeal finally came to an end on April 19 2008.