Latest - 4.45pm: Gardaí have issued a fresh appeal to young people in Dunleer, Co Louth regarding the murder of Cameron Reilly.
Detectives say a number of teenagers may have been taking drugs or drinking that night but that they are not focusing on these activities.
Gardaí are still trying to locate Cameron's mobile phone, an iPhone 8 Plus with a black and green cover, which they believe is "key" to their investigation.
Superintendent Andrew Watters from Drogheda Garda Station, who is leading the investigation, said their primary focus is "to establish for Cameron's family the truth as to what happened to Cameron".
Superintendent Andrew Watters who’s leading the Cameron Reilly Murder investigation in Dunleer County Louth says finding the 18 year olds iPhone 8 Plus mobile phone , which has a black and green cover is “key” to their investigation, more at 5.30 #3news pic.twitter.com/RZhZYKfNhV— Sarah O'Connor (@sarahoc3news) May 30, 2018
Update 9.30: Cameron Reilly's phone could contain evidence he was lured to his death
A phone belonging to Cameron Reilly could contain evidence that he was lured to his death.
Gardaí investigating the murder of the 18-year-old in Louth last weekend are still searching for his iPhone which has been missing since his death.
A phone found during the search in a nearby cemetery later turned out to be unconnected to Cameron Reilly.
Earlier: Garda appeal as Cameron Reilly homicide inquiry continues
By Cormac O'Keeffe
Friends of Cameron Reilly have helped gardaí in retracing his movements before the 18-year-old was murdered.
Detectives are piecing together who saw him when, and at what location, prior to the discovery of his body at Rivervale, Dunleer, Co Louth on Saturday morning.
Sources said the investigation team was trying to narrow down and identify who was with him when he was beaten and strangled.
However, they are continuing to look for people with information to come forward. Gardaí have been trying to locate his phone, an Apple iPhone X, to see if it contains text or online messages from his would-be attacker or attackers.
Cameron was described by his former school principal Eilish Flood as a “kind, well-mannered young man”who had a wide circle of friends.
Gardaí believe that Cameron was with a group of up to 20 youths on Friday night, who were hanging out in fields in Dunleer.
The first-year college student was last seen going to a takeaway on the Ardee Road in the town at around 12.30am.
Gardaí are investigating if there was any altercation outside the takeaway.
Cameron’s body was found by a dog walker at 8.30am on Saturday.
Gardaí have asked people with information to ring Drogheda Garda Station on 041 987 200, the Garda Confidential Line at 1800 666 111 or any garda station.
A GoFundMe page was set up on Monday to assist his parents Tracy and Snowy, and within a day had raised more than €6,000.