Police are now searching the garages and gardens near Alexander Pacteau's flat in connection with the disappearance of Karen Buckley.
Earlier, the flat belonging to a company director who police say last saw Karen Buckley before she went missing was sealed off.
Forensic teams have spent this afternoon searching the back garden of Alexander Pacteau's flat, located less than half a mile from Dawsholm Park where Karen's handbag and mobile phone where discovered in a dustbin.
Police have confirmed to Independent.ie that divers have now joined the search for missing Irish student Karen Buckley, who has been missing for just over three days following a night out in Glasgow.
A farm just outside Glasgow, roughly eight miles from Dunbarton Road, has also been cordoned off.
Officers were seen at High Craigton Farm, in Milngavie, Glasgow.
There are also reports of police activity at Windyhills Golf Club, which is close to the farm.
Nursing student Karen (24) from Cork was seen leaving the Sanctuary nightclub in the city centre with a man in the early hours of Sunday.
Twenty-one-year-old Alexander Pacteau, who was interviewed by police but is not being treated as a suspect, is believed to be the last person to have seen Karen before she vanished.
It's understood Mr Pacteau is seen on CCTV footage leaving the Santuary nightclub on Dumbarton Road just after 1am on Sunday morning.
Karen “wasn’t under duress”, police say, when leaving the popular nightclub and following him.
Shortly afterwards, Mr Pacteau drove with Karen to his apartment on Dorchester Avenue about two miles from the club.
He told police that he and Karen spent a few hours together, before she left at 4am.
Mr Pacteau told police he offered to give Karen a lift, but she declined.
Mr Pacteau was said to be “helping police with enquiries” but Supt Kerr yesterday stressed that he is “not a suspect”.
Officers also continue to carry out enquiries to locate missing Karen Buckley, originally from Mourneabbey, Mallow, Cork.
Specialist officers are carrying out a detailed search of Dawsholm Park and the surrounding area with support from the air support unit, marine policing underwater unit, specialist crime division, police search dogs and operational patrols.
They are also tracking down a grey car seen driving erratically a short distance away.
Speaking today, Detective Superintendent Jim Kerr said:
"Our absolute priority is to find Karen Buckley. We have a team of specialist search officers from the west and east working in the area as well as additional patrols in the west end and north of the city."
"Anyone with any information, no matter how insignificant it may seem, should contact 101 or anonymously on Crimestoppers."
"Patrols have been stepped up in the west end, Kelvindale and Anniesland. Please feel free to approach them with any information or any concerns you might have."