Gardaí are liaising with Spanish authorities after the brother of an Irish sports star was reported missing in Spain.
The 37-year-old man who is the father of two children has been living in Marbella on the Costa del Sol for a number of years.
He was reported missing in Spain by his family earlier this week.
Gardaí have also been in contact with his wider family in Dublin.
Concerns have been raised for the welfare of the Dublin man following the murder of a man in Barcelona on Wednesday morning.
The man who was shot in the head at Carrer de Balmes in the Catalonian city has not been named.
A spokesperson for the police in Catalonia said the investigation is ongoing and that a local magistrate has directed the police not to disclose information in relation to the murder.
Garda sources believe at this stage the missing man is unlikely to be the man shot dead in Barcelona, which is over 1,000 kilometres from his home in Marbella.
However, gardaí are working with Spanish authorities to try to establish the Irish man’s whereabouts.
The 37-year-old is known to gardaí and has been before the courts in Ireland a number of times in relation to burglary and driving offences.
He moved to Spain during the Hutch-Kinahan feud a number of years ago when concerns emerged for his safety.