Gardai in Athlone have arrested another man in connection with the discovery of a body on Friday.
The body of 23 year old Patrick Krupa was taken from the River Shannon two days ago.
He was known to Gardai and is suspected to have been involved in the drugs trade.
Two of three men arrested yesterday have been released without charge from Mullingar Garda station and files will be prepared for the Director of Public Prosecutions.
