Published Monday, 27 June 2011
George Damien MacFerran was released from custody on Friday, despite still having six weeks left to serve on his sentence.
The 47-year-old was found by the PSNI on Monday and has been returned to prison.
The Justice Minister said he is "appalled" at the erroneous release.
"I have had an initial briefing on this incident and have directed that a thorough investigation be launched immediately," said David Ford.
"I want to know exactly how this has happened and how it took two days for the error to come to light. If it turns out that individuals are to blame the Director General has assured me that appropriate action will be taken."
Last year, Mr Ford ordered a disciplinary investigation after three prisoners were wrongfully released from jail in the space of two months.