A 48-year-old man arrested in the Craigavon area on March 5 on suspicion of murder, assisting offenders, and preventing a lawful and decent burial has been released unconditionally. The PSNI Major Investigation Team made the arrest in connection with the 2005 disappearance and murder of Lisa Dorrian from Bangor.

Lisa Dorrian, aged 25, was last seen alive on the night of February 27, 2005, in Ballyhalbert after attending a party at Ballyhalbert Caravan Park. Police believe she was murdered that night or in the early hours of February 28. Her body has not been found.

This marks the fourth arrest in the investigation in recent days. A 40-year-old woman and a 42-year-old man were arrested on February 25 on suspicion of murder, assisting offenders, withholding information, and preventing a lawful and decent burial. Both were released on bail.

A 40-year-old man was arrested in Millisle on March 4 on suspicion of assisting offenders and withholding information. He was released on bail.

Detective Chief Inspector Kerrie Foreman stated that a family lost their daughter and sister 21 years ago. She said the investigation continues with determination to provide answers, closure, and justice.

Police request information from the public. Contact detectives on 101 or Crimestoppers anonymously on 0800 555 111 or online at www.crimestoppers-uk.org.