Police have said that a device found under the car of an off-duty police officer was a "viable bomb" and was "clearly intended to kill."
The bomb has destroyed in a controlled explosion.
The device was discovered by the officer at around 2pm on Sunday. The car had been parked at his home on the Upper Newtownards Road - a busy arterial route into the city centre.
ITV News reporter Damon Green:
More top news
Leicester City's victorious players spotted a man who looks uncannily like star striker Jamie Vardy and invited him on to their bus.
Weather finally looking up this week.
If Donald Trump wins here tonight, it is a near-fatal blow to his rivals. Ted Cruz and John Kasich will be under pressure to drop out.