Authorities hunting killer of policeman in N. Ireland seize gun , arrested . 3 more arrests over shooting of two soldiers and police . Petrol bombs hurled at police after earlier killing of two men . That brings the total in custody to five , police told CNN . Two republican ##s have reportedly claimed responsibility for the killings .
Authorities hunting killer of policeman in N. Ireland seize gun , arrested . 3 more arrests over shooting of two soldiers and police . Petrol bombs hurled at police after earlier killing of two men . Two republican ##s have reportedly claimed responsibility for the killings .