The trial of a man accused of murdering 29 people in the Omagh bombing will go ahead, a prosecutor said.

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.

Detectives in the North were carrying out a manhunt today after police officer Ronan Kerr was killed by a booby trap car bomb in Omagh.

A young Catholic police officer murdered by a booby-trap car bomb in the North had only recently graduated from training college.