Two men arrested by police over the attempted murder of three police officers in a bomb attack in north Belfast have been released without charge.
Two policemen and one policewoman were only metres from a bomb when it exploded on the Duncrue costal path in north Belfast last month.
Forensic experts have been examining whether the device detonated fully.
The officers, who had been responding to a call-out, escaped injury.
There had been two previous call-outs to police earlier in the day alleging a crime had been committed on the towpath and police are investigating whether the officers were lured to the scene of the bomb.
The men - aged 23 and 42 - had been detained in the north Belfast area yesterday.
As part of the police operation a number of searches were also carried out in north Belfast.