Security at Inishcairn road where a suspect device was found at the homoe of independant councillor Gary Donnelly. (North West/ Newspix/PA)
Police have been dealing with four such alerts across Derry this morning.
As part of their investigation, detectives have arrested a 39 year old man was detained under section 41 of the Terrorism Act 2000.
He has been taken to the Serious Crime Suite at Musgrave Police Station for questioning.
The security operation in the City is continuing.
A PSNI spokesperson said there will be “major disruption” as Iniscarn Road, Harty Court and Moss Park have been sealed off.
Army robot at security in Inishcairn road where a suspect device was found at the homoe of independant councillor Gary Donnelly. (North West/ Newspix/PA)
Army Technical Officers have since carried out a controlled explosion on the suspect device.
A section of the Strand Road has also been closed to traffic as police examine a suspect car.
Police said that diversions are in place and that it can “only apologise for the inconvenience”.
However, it is understood police are not linking the security alerts to the murder of journalist Lyra McKee in Creggan on Thursday night by dissident republicans.
Strand road in Derry which was closed due to an on going security incident. (Joe Boland/North West Newspix/PA)
