Police investigating the disappearance of a County Down woman have said they are following specific lines of inquiry as to her whereabouts.
Lisa left her handbag and personal belongings behind at a party
Lisa Dorrian, 25, has been missing since she left a party at a caravan park in Ballyhalbert on 28 February.
Detectives have said there is growing concern about the Bangor woman's safety but there is no evidence of a crime.
A caravan from the site has been removed for examination and searches of the area have been conducted.
A number of premises in Ballyhalbert and elsewhere in County Down were also searched on Wednesday.
The inquiry has now been taken over by the police's main investigations unit, the PSNI's Crime Operations Branch.
A caravan from the site has been removed for examination
When she disappeared, Lisa left her handbag and personal belongings behind her and has not made contact with friends or family since.
On Monday, officers questioned drivers in the village where she was last seen. Her family said she had been spending quite a lot of time at the caravan park in recent weeks.
Some of the people at the party on the night she disappeared have already come forward to help police with their inquiry.
Lisa is described as being 5ft 4ins in height, with blonde hair and was wearing a white short sleeved top with lettering on it, cream tracksuit bottoms and a pair of white furry moon boots.
The police want anyone with information to contact detectives at Newtownards police station.