Experts examine car bomb scene

Police in the North are combing the scene of an explosion that killed a Catholic officer to find out how the dissident republican bomb was made.

Experts are gathering tiny shards of evidence from the site of the blast in Omagh, Co Tyrone, where new recruit Constable Ronan Kerr, 25, died. The car was badly damaged by the booby trap device planted in a busy residential housing area.