Families remain out of their homes in Currynierin this morning as a security operation continues.
The Ardmore Road in Derry remains closed this morning, as does the Currynierin Estate.
A PSNI spokesman said: “There is no access to either due to the ongoing security operation.
“The security operation in Currynierin is continuing this morning.
“Police and Army Technical Officers are due to carry out a further examination of a suspicious object in daylight.”
The object was found during searches yesterday following telephone claims a device had been left.
The officer in charge of the overnight operation, Chief Inspector Andy Lemon, has reiterated police regret for the impact on the local community but has stressed that the main priority of police at this time is to ensure the safety of that community.
Sinn Féin Councillor Paul Fleming condemned those responsible for a causing the alert.
Councillor Fleming said; “Those behind this security alert must be condemned.
“This has achieved absolutely nothing except bringing disruption to the community in Currynierin, particularly those evacuated from their homes.
“There is only one entrance and exit to the estate and, as a result of this alert the residents had to remain in the area.
“This is a city moving forward and the wider community has made it clear that there is no support for this type of activity.
“Those responsible need to listen to the will of the vast majority of people and end these futile actions immediately.”