Austrian woman says held 24 years

By Sylvia Westall

VIENNA (Reuters) - Austrian police have arrested a man they believe imprisoned his daughter in a windowless basement for 24 years, abused her and fathered seven children with her.

Police said the woman, identified as 42-year-old Elisabeth F, told them her father Josef had lured her into the basement of the block where they lived in the town of Amstetten in 1984, and drugged and handcuffed her before imprisoning her.

Three of her children were locked up since birth in the basement of the drab, grey building along with their mother and had never seen sunlight or received any education, police said.

Authorities in Amstetten, 130 km (80 miles) west of Vienna, were still piecing together details of the case, reminiscent of that of Austrian Natascha Kampusch who spent eight years locked up in a windowless cell before escaping in August 2006.

"We are faced with a crime that is incomprehensible," Interior Minister Guenther Platter said on Austrian television. "Everything that has happened here goes beyond one's imagination".

Josef, a 73-year-old electrical engineering technician by training, told investigators how to enter the basement prison through a hidden door operated by secret code, police said.

"There was a shelf with plenty of cans and containers, and behind the shelf was a door made of reinforced concrete, secured electronically and running on steel rails, and only the suspect knew the code," said local official Heinz Lenze.

The hideout itself was a sophisticated network of chambers with facilities for sleeping, cooking and washing, Franz Polzer, head of the criminal investigations unit in the province of Lower Austria, told broadcaster ORF.