
A forensics team examines the scene where significant arms were found in Coalisland, east Tyrone, during the investigation into the murder of Ronan Kerr.
Dissident republicans who prepared a 500lb (227kg) van bomb risked causing an Omagh-style massacre, politicians in Northern Ireland have said.
Detectives believe the bomb, found at an underpass near the border on the main Belfast to Dublin road, may have been destined for a town centre attack.
29 people were killed and 220 were injured in a bomb attack in the centre of Omagh in August 1998.
While it is believed the presence of a police checkpoint forced the latest bombers to abandon the vehicle, hundreds of motorists drove past the device unaware of the danger after traffic cones and warning signs had been removed, and even driven over, by others on the road.
The blue Ford transit van, stolen in Maynooth outside Dublin in January and carrying false Donegal registration plates, was found near Newry and contained a wheelie bin packed with 500lbs of homemade explosives.
Comment: The question to ask is qui bono?
British intelligence is notorious for creating terror scares, real and imaginary, in Ireland:
Patsies Framed For Omagh Bombing Appeal, Evidence Suggests British Intelligence False Flag Operation