: A businessman who played an important role in securing peace in Northern Ireland has died aged 80.
Brendan Duddy acted as a secret back channel link between the IRA and the British Government for more than 20 years.
The clandestine connections - at a time when British public opinion would not tolerate talking to terrorists - led to the IRA's 1994 ceasefire and the Good Friday peace agreement four years later.
The contact lasted from the 1970s into the 1990s. He was the most important link between then prime minister Margaret Thatcher and the IRA during the 1981 hunger strikes.
Among those to pay tribute were SDLP Foyle Westminster candidate Mark Durkan.
Sinn Féin's Elisha McCallion said she was shocked and saddened. "Brendan was a key figure in the business life of Derry for decades and was widely respected across the city and beyond.
"He also played a significant role in the development of the peace process over many years and his contribution, together with others, helped end the conflict and promoted reconciliation.
"His firm belief in dialogue also helped resolve parading issues and, through his membership of the Policing Board he helped shape the accountable policing we have today. "
: Brendan Duddy - the Derry businessman who played a role in securing peace in Northern Ireland has died at the age of 80.
At the height of the conflict he acted as a link between the IRA and the British government.
The President of NUI Galway - which is home to Mr Duddy's extensive archive - says history owes a great debt of gratitude to him and his family.
Dr Jim Browne says during the dark days in the North, Brendan Duddy showed an unwavering courage and commitment to creating the conditions for peace on this island.