Lisa Dorrian: Police search land in Comber
Detectives investigating the murder of Lisa Dorrian are searching an area of farmland near Comber, County Down.
Officers are using specialist equipment to survey an area of ground they have cordoned off on the edge of the village.
It is understood they may be looking for a vehicle that could have been used in the murder.
The 25-year-old was last seen at a party at a Ballyhalbert caravan site in County Down on 28 February 2005.
Despite extensive land and sea searches, her body has never been found. Police have made several arrests but no-one has been charged with her murder.
Police said the search in Comber was not to look for human remains.
Lisa Dorrian's family made an appeal to the public to help them find her on the seventh anniversary of her disappearance in February.
The Dorrian family have tried a number of initiatives since she went missing, including linking up with Snow Patrol singer Gary Lightbody and releasing a short film at cinemas.
A £10,000 reward was also offered for information leading to the recovery of her body.