Two men have been arrested in connection with a van bomb found in Northern Ireland earlier this year.
Hundreds of motorists drove past the 500lb device, which was found in the vehicle under the Newry bypass on the main road between Belfast and Dublin in April.
The two men, aged 35 and 36, were detained in Belfast city centre and taken to Antrim police station for questioning.
Police carried out a review into why motorists were allowed to drive past the van containing the bomb.
The Police Service of Northern Ireland said a cordon had been removed by motorists.
Army bomb experts carried out several controlled explosions on the vehicle before it was removed.