Gardaí investigating the murder of Andrew Allen in Co Donegal have arrested a man.
The man, who is in his 50s and from Northern Ireland, was arrested this morning in Co Donegal and is being detained at Buncrana Garda Station.
Andrew Allen was shot dead at his home at Links View Park, in Buncrana, on 9 February.
He was gunned down through a window after a group of men tried to break down the front door.
The attack has been blamed on the Republican Action Against Drugs group.
