Northern Ireland police: Bomb explodes under car

Northern Ireland police say a bomb has exploded under a car in the town of Omagh.

It was not immediately clear who may have been targeted or if there were any casualties in Saturday's blast.

Since 2007, Irish Republican Army dissidents have planted dozens of booby-trap bombs under the private cars of police officers. The bombs usually fail to detonate and have killed nobody. But two policemen have lost their legs in attacks in May 2008 and January 2010.

IRA dissidents committed the deadliest single bombing of the entire Northern Ireland conflict in Omagh on Aug. 15, 1998, when a car bomb detonated amid a crowd of evacuated shoppers and workers. Twenty-nine people, mostly women and children, were killed.