A 52-year-old prison officer who was injured by a targeted booby-trap bomb blast in Northern Ireland earlier this month has died.
Married father-of-three Adrian Ismay was hurt after a dissident republican bomb detonated under the van he was driving to work on March 4 in east Belfast.
The prison officer was given surgery for severe leg injuries suffered in the attack and was thought to be recovering but died on Tuesday.
Police Service of Northern Ireland said it was "working to establish the exact cause of Adrian's death" while continuing to investigate the bombing, which a group calling themselves the New IRA has claimed to have carried out.
One man has so far been charged with attempted murder and causing an explosion with intent to endanger life.
Northern Ireland First Minister Arlene Foster tweeted her shock as reports of his death emerged:
I'm devastated. Can't believe the news. I was texting Adrian before we left for the US. He was doing well. My thoughts are with his family.
Prime Minister David Cameron and Northern Ireland Secretary Theresa Villiers also paid tribute.
Deeply saddened to hear prison officer injured in bomb attack in Belfast on 4 March has died. Thoughts with father-of-three’s family.
SofS: I am shocked & saddened to hear of the death of this prison officer. My thoughts & deepest condolences are with his family.
Chairman of the Prison Officers' Association Finlay Spratt said the death was a complete shock.
Mr Spratt said: "I have no doubt that the explosion that took place was a factor. He was not a person that I knew had any sickness or ailments.
"I just can't believe it. I was just ringing to find out how he was and that's the news I got."
Mr Spratt added: "He was out of hospital and for this to happen - it is as much of a shock as the attack itself."
The long-serving officer worked at Hydebank Wood Young Offenders Centre in south Belfast and had trained new recruits to the NI Prison Service.
The New IRA group told the BBC that Mr Ismay was targeted because he had trained guards at HMP Maghaberry.
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