The family of murdered IRA spy Denis Donaldson have used the 10th anniversary of his death to appeal to Gardaí to "fully co-operate" with an investigation into his outing as an agent.

Gardaí are today continuing to question a man in connection with the murder of IRA informer Denis Donaldson.

Two men remain in Garda custody this morning in relation to the death of former Sinn Féin member Denis Donaldson.

A second man has been arrested by gardaí last night in connection with the murder of IRA informer Denis Donaldson.

Gardaí today renewed their appeal for information on the murder of Denis Donaldson.

Sinn Féin has claimed the PSNI Special Branch has serious questions to answer about the murder of Denis Donaldson.

Denis Donaldson’s desperate final moments as he tried to save himself from assassination were revealed tonight.

The family of former British spy Denis Donaldson said today they did not believe the IRA was responsible for his murder.

Gardaí today pledged all resources would be made available to crack down the killers of British spy Denis Donaldson.

The murder of former IRA member and British spy Denis Donaldson is an attempt to damage the peace process, Sinn Féin chief negotiator Martin McGuinness said today.

The Taoiseach has revealed this morning in the Dáil that gardaí warned former spy Denis Donaldson that his life could be under threat, before he was killed.

The gardaí faced heightening demands today to find the killers of British spy Denis Donaldson amid fears that the new Northern Ireland peace initiative could be doomed.

Forensic tests are continuing today as police try to find the killer of former Sinn Féin chief-turned spy Denis Donaldson.

The Irish and British governments were tonight united in their insistence that plans to unveil proposals for a new power-sharing executive will go ahead on Thursday as planned despite the killing of Denis Donaldson.

Sinn Féin’s Caoimhghin Ó Caoláin tonight echoed party president Gerry Adam’s condemnation of the killing of Denis Donaldson.

Shamed ex-Sinn Féin official Denis Donaldson was found shot dead in Donegal tonight.

Admitted IRA 'mole' Denis Donaldson has been shot dead according to reports this evening.