A prison officer wounded after a bomb under his van exploded in Belfast, Northern Ireland, earlier this month died in hospital on Tuesday, the Northern Ireland Prison Service said on Tuesday.
Adrian Ismay, 52, was rushed to hospital right after the explosion on March 4 and was released a week ago.
Even though police had said his injuries were "not life-threatening," he passed away after being rushed back to the hospital on Tuesday morning.
"Adrian Ismay gave over 28 years of service to prisons in Northern Ireland and he was greatly respected by all those who knew him," Northern Ireland Prison Service Director General Sue McAllister said in a statement.
Democratic Unionist Party leader Arlene said she is "devastated" on her twitter account.
"I'm devastated. Can't believe the news," she wrote.
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.
— Arlene Foster (@DUPleader) March 15, 2016
The group widely referred to as the New IRA, or Real IRA, claimed responsibility for the attack.
The New IRA is a group opposed to a 1998 peace deal that put an end to violence in Northern Ireland between Protestants and Catholics.
According to police a 45-year-old man was charged with attempted murder of the prison officer while the authorities are still investigating the cause of his death.
The province’s police fear about future threats as the 100th anniversary of Ireland's 1916 Easter Rising against British rule approaches, saying there is a "severe" threat to security forces.