Adrian Ismay, 52, was pronounced dead earlier on Tuesday after being readmitted to the hospital. A dissident republican group calling itself the New IRA claimed responsibility for detonating an explosive device under Ismay’s van in east Belfast over a week ago.
"Those responsible for this attack, regardless of what they choose to call themselves, do not speak for or act in the name of the Irish people," Raymond McCartney said in a statement.
Detective Chief Inspector Richard Campbell told Sputnik one man has been charged with attempted murder and causing an explosion with intent to endanger life, as the investigation into the attack continues.
Dissident Irish republican violence has been rising in recent months, with the Police Service of Northern Ireland warning earlier this month that attacks could increase in the run-up to the 100th anniversary of the 1916 Easter Rising against British rule.
In July 2005, the Provisional IRA announced an end to its armed conflict, vowing to pursue "democratic politics."
