Police in Derry are currently in attendance at a number of security alerts in the city this morning.
Road closures are in place on Iniscar Road, Hary Court, Moss Park.
A section of Strand Road has also been closed to traffic, Belfast Live reports.
It is reported that in one incident a suspect device has been left outside a councillor's home.
A PSNI spokesman said: "A number of homes in the area have been evacuated and local diversions are in place.
"There are no further details at this time."
Gardai investigate alleged sexual assault of a woman in Corbally, Co Clare
Police said the alerts are "going to cause major disruption" and asked people to "please be on hand to help affected family, friends or neighbours".
Shortly before 10am this morning, the PSNI issued an update.
A spokesman said: "Officers in Derry/Londonderry investigating a number of security alerts in the city this morning have made an arrest.
"A 39-year-old male was arrested in the city and has been taken to the Serious Crime Suite at Musgrave Police Station for questioning.
"The security operation in the city is continuing."
The city is on alert following the killing of 29-year-old Lyra McKee on Thursday night.
The freelance journalist was shot dead as she stood in between police vehicles while reporting on a night of rioting in Creggan.
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