Man arrested in connection with murder of informer Donaldson

A man has been arrested in connection with the murder of Republican informer Denis Donaldson five years ago.

Donaldson was shot dead at his home near Glenties in Co. Donegal in April 2006.

The man arrested this evening is in his 40s and is the third person to be questioned over the killing.

He is being held at Monaghan garda station under Section 30 of the Offences against the State Act.

A double agent for British intelligence, Donaldson had been interned during the Troubles and went on to participate in the Northern peace process.