The family of a County Down woman who has been missing for five days have joined in with the search operation.
Detectives investigating the disappearance of 25-year-old Lisa Dorrian from Bangor have said that they could not rule out a crime.
Air and land searches have been carried out along the Ards Peninsula.
Miss Dorrian, who was last seen on Monday morning, went missing after a party at a caravan park in Ballyhalbert.
Police have said some of the people at the party have come forward to help with their inquiry.