The family of a 20-year-old Irishman who went missing in the Netherlands almost a month ago have appealed for help in tracking him down.

John Power moved to Maastricht 18-months ago, and was last seen leaving on a Flixbus and planned to move to Berlin at 4:30 am on June 9.

Desperate to find his son, his father, Michael Power, made an emotional appeal on Liveline asking RTE Radio 1 listeners to help him find his son, who has been missing for three-weeks.

Expressing concern, Mr Power said John has ‘gone silent’ in all social media and messaging to friends and family, and they are all ‘very worried’ at this ‘out of character’ behaviour.

‘On the night of his disappearance he had a party, and he suddenly decided that he was going to Berlin, and we’re very worried because the police in Maastricht have launched a missing person investigation, and he is now listed on Interpol.’

Flying out to Maastricht on Friday to see can he find anybody with any information about his son’s disappearance, he said their fear is that ‘something has happened to him’

Michael Power tells @joeliveline that his son John went to Maastricht and is now missing #Liveline pic.twitter.com/RNnNLwYK36 — Liveline (@rteliveline) July 5, 2018

Appealing to anyone with connections in either Berlin or Maastricht to share the missing person information about his son, Mr Power said his son had started to work in the DJ rave scene, and asked anyone who might know him from the clubs to get in touch.

‘Any type of information that could pinpoint his last whereabouts could support us in trying to come to an understanding of where he is at, and does he need any help.’

Expressing his fears, Mr Power said: ‘He’s a super smart chap, but equally he can have a dark side, and that’s what we’re worried about…did something take hold of him? Or is he into a place he can’t manage? Or somewhere people can’t relate to him, and he’s lost?’

Officials in Maastricht are now looking at the CCTV images of the bus stations but Mr Power said that they cannot rule out that he may also be in Germany.

Mr Power is trying to get onto his Gmail account to see if there was any activity over the last number of weeks but there are GDPR issues around it, and John also recently sold his phone.

Appealing to anyone who may have relatives in Berlin who might have heard something, he said: ‘I’d appeal to your listeners to get in touch if they have been in Maastricht or Berlin, who say ‘we’ve come across that chap and he’s safe”.’

John Power Waterford missing Maastricht ..Berlin can you retweet and help his distraught family https://t.co/wzAms0caFU — joeduffy (@joeliveline) July 5, 2018

Currently on Interpol’s missing list, they describe the Waterford man as being ‘very casual, might appear unkempt, typical jeans and t-shirt, with old black hat sometimes.’

‘Had a tattoo, on inner arm that read ‘ tattoo’, wears leather bracelet and sometimes fake ruby ring. Might have earrings.

‘Likes Garage music, the underground scene, Raves. Slight protruding lower jaw, that becomes pronounced when clenched with upper jaw,’ the profile says.

Listen to Michael Power make the appeal on RTE Radio 1’s Liveline here: