An appeal has been issued for information following the murder of a 33-year-old Dublin man whose dismembered body was found in the Grand Canal at Ardclough in Co Kildare last weekend.

He has been identified as Kenneth O'Brien from Lealand Road in Clondalkin.

He was last seen alive on Friday and had told his family before he left home that he was going to do some work outside Dublin.

Mr O'Brien, who returned from Australia in December, worked as a diesel fitter and operator of construction vehicles.

Gardaí are appealing for information relating to sightings or meetings with Mr O'Brien near his home in Clondalkin or near the Grand Canal at Ardclough in Co Kildare on Friday or Saturday.

They said they have no evidence he was in fear of anyone or anything and are now trying to establish a motive for his murder.

Garda forensic specialists have carried out examinations at Mr O'Brien's home today.

They are also trying to find the place or places where he was murdered and dismembered and fresh searches have been carried out in Dublin and Kildare.

Gardaí believe the murder may be related to a personal matter as Mr O'Brien was not known to be involved in crime.

Minister for Justice Frances Fitzgerald described it as a most shocking and distressing case.