THE HAGUE • Dutch police on Thursday arrested the father of a family kept for nearly a decade in a farmhouse, saying they were investigating whether a "certain belief in faith" was behind the case.
The 67-year-old was suspected of depriving people of their liberty, harming the health of others and money laundering following the discovery of the people in the northern village of Ruinerwold in the Netherlands, said the police. He is the second person to be arrested.
The 58-year-old tenant of the farmhouse, an Austrian man, appeared before an examining judge on Thursday on similar charges and was ordered to be detained for two weeks.
"We are dealing with an exceptional situation in this case. These people may have lived with one another in the home since 2010, apart from society," the police said in a statement.
The police said the group "claim to form a family" with the suspect arrested on Thursday as the father and the six young people - including one who raised the alarm after fleeing to a local pub - supposedly being his children.
"We have reason to believe that the six people involved did not stay at the premises out of free will. We are investigating whether following a certain belief in life or faith has led to the living situation in which the people were found," said the police.
"The situation encountered requires a careful approach whereby attention and care are given to the young adults found."
The family was discovered when the oldest son walked into a local bar in a confused state and raised concerns about the welfare of the others.
Three other people who say they are the children of the 67-year-old man said they left the family eight years ago, and had since heard no news of the others, according to a statement reported by ANP news agency.
Dutch media have said the family was "waiting for the end of time" as part of a doomsday cult.
Local television station RTV Drenthe earlier said the Austrian man, identified only as Josef B., the father and the captive family were part of South Korea's controversial Unification Church, dubbed "Moonies" after their late founder Sun Myung Moon.
Mr Wim Koetsier of the Universal Peace Federation, the name the church now goes by, confirmed that the father of the family was a member in the 1980s before leaving for Germany, where "we lost sight of him". He said he believed the father "together with someone else" had since started their own group.
Josef B., however, "was never a member," Mr Koetsier told ANP.
The brother of Josef B. separately said that the suspect had previously been in a cult after leaving military service, although he did not say which religious group.
"He was in a sect. We've had no contact with him for 10 years. I told him to get lost when he wanted me to become his financial guarantor," his brother Franz B. told Kronen Zeitung newspaper.
Josef B had rented the farmhouse, but did not live there, and ran a carpentry business in a nearby town.
"We used to see him. At first, we thought he was our neighbour. And we always used to think that he lived alone there, that no one else lived there," said Mr Vincent de Gooijer, 46, who lived in a house overlooking the farm.
"He was always busy working, we assumed he was doing up the farm. But he arrived early in the morning and left at the end of the afternoon, so he didn't sleep there or live there."