6. Interest Expense

Group 2014
€’000
2013
€’000
Interest on senior debt securities in issue 79,395 126,016
Interest on derivatives where hedge accounting is applied 228,503 231,590
Interest on other derivative financial instruments 5,276 16,905
Total interest expense 313,174 374,511

On 28 March 2013, NAML issued bonds to the value of €12.9bn as consideration for the acquisition by NARL (in Voluntary Liquidation) of a loan facility deed and floating charge over the assets of IBRC from Central Bank of Ireland. These bonds were fully redeemed by 23 October 2014. The interest expense incurred by NAML on these bonds in the year was €15.8m (2013: €33.7m). The reduction on the prior year interest expense is as a result of bond redemptions.

Agency 2014
€’000
2013
€’000
Interest on intergroup loans 186 836