The sister of the Polish butcher arrested over the disappearance of Hull student Libby Squire has insisted her brother is innocent.
Detectives have sealed off Paweł Rełowicz's rented house and towed away his silver Vauxhall Astra after they arrested a 24-year-old man on suspicion of abducting the missing Hull student, 21.
His sister Paulina Szymanska, 28, who is living in Poland, said: 'I can't believe it and I hope it's a bad dream.'
She told The Sun: 'We come from big, poor, but wonderful family. Our parents raised us to be good, hard-working people.
'He could never do such a thing. I really hope police will find this poor girl and that it's a big misunderstanding.'
His mother Marzena added: 'He was a good, quiet guy, helping around the house. He never caused any trouble.'
Police have raided the home of Polish butcher Pawel Relowicz (left) over the disappearance of Libby Squire, 21, (pictured right) in Hull a week ago
Forensics teams are said to have been carrying out fingertip searches inside the sealed-off property in Hull and were seen taking away evidence in bags including tablets, a laptop and a PC
Yesterday afternoon officers stopped the public entering a large area of Oak Road playing fields surrounding a pond with a helicopter hovering above as police searched drains and bins. It is half a mile from Libby's home.
Pawel Relowicz is a married father-of-two who works in a bacon factory and had recently had his second child
Teams were also scouring a stretch of riverbank and a series of abandoned buildings - but officers turned walkers away and refused to say why they were back in an area they have already checked in the seven days since she vanished.
A forensics officer was also seen bagging up evidence and photographing an area of pathway leading into the cordoned-off zone.
Bacon factory worker Relowicz, who according to his Facebook profile is a martial arts enthusiast, moved into the raided property around a year ago with his wife and their sons.
The terraced house is less than a mile from where Libby was last seen sitting on a bench seven days ago and forensics officers were carrying out fingertip searches as detectives removed Relowicz' belongings including a PC and a tablet computer.
Colleagues of factory worker Relowicz were shocked at news of his arrest.
Tadeusz Skibicki, 39, said: 'When I heard the news it was a big shock. Pawel is a quiet, normal person. He has never been violent.'
According to another friend, Relowicz had worked at the Karro Food Group's headquarters in Malton, North Yorkshire, for around five years.
His wife also worked there but had been on materity leave following the birth of their second child in October.
Last night officers raided their house in Raglan Street and were seen taking away a 24-year-old suspect now arrested on suspicion of abducting Libby, who was last seen on a bench last Thursday after a night out with friends.
On the seventh day of the search police insisted the disappearance of the 21-year-old philosophy undergraduate is still a missing person's inquiry with teams of officers again searching the area for her today - three days after her parents Lisa and Russell made a tearful appeal for information.
The score board shows a request fo help finding Libby Squire during the Betfred Super League match at the KCOM Stadium
Police stopped the public entering an area around a giant pond near Libby's home in Hull (circled in red top right) - days after already searching the area
The public have been stopped from entering an area around a pond and police were also surveying the River Hull running through the same area
Police are also searching a cordoned of section of woodland next to an abandoned building at the Oak Road playing fields
Police search a cordoned of section of woodland next to an abandoned building at the Oak Road playing fields and a forensics officer takes away evidence in a bag
Teams of Humberside Police officers have been searching the student area of Hull where she lived including the Oak Road playing fields next to her house where they have been lifting drains
An electronic billboard van was parked near to where Libby lives in Hull pleading for information about the missing student
A map showing where Miss Squire was last seen and where police have been carrying out searches and now an arrest
After last night's arrest officers towed away the Astra and remain at Rełowicz's property this morning where they were taking photographs inside and forensics officers were looking for fingerprints on the front door.
11pm Thursday, January 31: Libby is refused entry at Welly Club around two miles from her home and put into a taxi
11.30pm: Libby was dropped off on Wellesley Avenue - but does not go inside her house
11.45pm: Libby was seen sitting on a bench around the corner on Beverley Road. A witness says she was seen speaking to the driver of a car.
12.09am: Detectives believe Libby stayed in the area for about half an hour and was wandering the streets near her student digs.
12.30am, Friday February 1: A near-neighbour says she woke up after hearing 'blood-curdling' screams.
February 6: A 24-year-old man is arrested on suspicion of abduction and is 'helping police with their enquiries'
Searches intensified at the suspect's house and near a park pond and abandoned buildings.
John Garrity, 72, described the moment the police arrived on his neighbour's doorstep last night.
He told MailOnline: 'The police came knocking at my door and asked for access to the back garden. I knew it was to do with the couple next door but I never for a second imagined it was anything to do with the missing girl.
'The silver Astra that was taken away by the police last night does appear to belong to him, I have seen him in it many times.
'We've never had much conversation. The most that I have spoken to them was when a wooden panel in their fence fell down the lady asked whether I would call the landlord for them because her English wasn't up to it'.
He said they had children and a dog, adding: 'It is quite a shock to find this kind of police activity at their home to say the least'.
Hairdresser Iwona Reczulska said: 'I last saw Pawel about two weeks ago on Friday or Saturday. He was his normal self and was chatting about his kids as he usually did.
'He works five days a week at a bacon factory in Malton which is about an hour away.
'He's not one to go out drinking he always tells me that he likes to spend weekends at home with the family.
'it's very surprising to me to hear that they have been mentioned over something like this, they have seemed their normal selves with no sign of anything wrong or different.
'To me he was a normal, friendly, quite quiet guy.'
A friend of the couple, who didn't want to be named, said: 'I know him, his wife comes shopping here a lot. He would come in maybe every two weeks and he came in more when she was pregnant.
'He seemed like a normal,