Detectives in the North investigating the murder of Mark Gourley who went missing from Glengormley seven years ago have arrested a 45- year-old man in the Carrickfergus area.
Mark, 36, was reported missing on March 7, 2009.
He was last seen in the Burney's Lane area of Glengormley at around 2.30pm.
It is understood that Mark was a vulnerable individual and was on medication at the time of his disappearance.
Police launched a murder investigation in 2013.
His body has never been been located.
Update 5.09pm: A 43-year-old man has also been arrested and is being questioned at a police station in Belfast.