The incident has resulted in St Mary’s Way being closed and buildings being evacuated as emergency services respond to the incident.
Here are photos of emergency services at the scene as the event unfolds.
. Collage Maker-12-Oct-2022-03.10-PM.jpg
Emergency services at the scene in Sunderland city centre Photo: National World
. Road closed
Police close St Mary's Way as they deal with the incident Photo: National World
. Specialist team
Police and specialist team in Sunderland city centre Photo: National World
. Police cordon
Part of Keel Square cordoned off as police respond to a 'malicious communication' Photo: National World
. High Street West
Northumbria Police van enforces road closure in Sunderland city centre Photo: National World
. Building traffic
Traffic builds near Wearmouth Bridge as surrounding roads remain close Photo: National World
. On Duty
Northumbria Police officer on duty as emergency services respond to Sunderland city centre incident Photo: National Wold
1. Road closed
Police close St Mary's Way as they deal with the incident Photo: National World
2. Specialist team
Police and specialist team in Sunderland city centre Photo: National World
3. Police cordon
Part of Keel Square cordoned off as police respond to a 'malicious communication' Photo: National World
4. High Street West
Northumbria Police van enforces road closure in Sunderland city centre Photo: National World