Gardaí are expected to examine five sites in Dublin and Sligo in the investigation into the disappearance of Philip Cairns.

It is understood the properties were owned by the late sex offender Eamon Cooke.

Cooke is now the chief suspect in Philip's disappearance.

It comes after a woman came forward with new information to gardaí.

According to the Irish Independent, the sites were owned by Cooke, a former pirate radio station owner.

Gardaí will now seek the assistance of forensic experts as they examine the areas.

Philip went missing in the Rathfarnham area of Dublin in October 1986.