A 35-year-old man has been arrested as part of an investigation into suspected terrorism offences on the Shankill Road in Belfast.
Detectives from the Police Service of Northern Ireland's (PSNI) terrorism investigation unit located several "suspicious devices" during searches of properties on Friday morning.
A PSNI spokesperson said it was part of a "proactive investigation into suspected terrorism offences".
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The force said: "A 35-year-old man was arrested for offences under the Terrorism Act and remains in police custody at this time.
"As part of the proactive policing operation, a number of items have been located at an address at Edwina Street in the city and a number of properties have now been evacuated.
"Motorists are advised to avoid the area at this time as officers remain at the scene during this public safety operation."
Police, including ammunition technical officers, remained at a house in the street at 7pm, and the force asked the public to avoid the area until further notice.
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