Police apprehended a man following an incident yesterday afternoon at Modbury, according to SA Police.
Just before 6pm on Friday 2 September, patrols were called to Westfield Tea Tree Plaza after reports a man carrying several knives had entered the mall.
Police were quickly on scene and located the man near the north western entrance and arrested him without incident.
The 28-year-old from the northern suburbs was taken to hospital for medical assessment and may face several charges pending his release.
No one was physically injured.