VIDEO: Police officers comb key areas as search for missing Karen Buckley intensifies

Less than 700m separates the two key locations in the search for Karen Buckley.

The apartment on Dorchester Avenue is the middle flat in the three-storey terraced house, one of the dozens that line either side of the long avenue.

The doors to the buildings on this side of the road are raised from the street level, accessed via a winding sloped path up the short incline from the pavement.