A Dundee street has been cordoned off by police as part of an ongoing inquiry.
Officers descended on Troon Avenue in Ardler on Friday afternoon.
Their investigation appears to focus on a large detached house.
Forensic officers were seen leaving the garage of the property, and closing the door behind them.
Other officers – both uniformed and in plain clothes – have stationed outside the house since about 4pm.
A man was seen to be led by police from the property into a police car.
Police have not disclosed the nature of the investigation, but confirmed there was no danger to the wider public.
One neighbour said: “I heard the sirens and then saw loads of police arrive on the scene.
“No one seems to know what’s happening.”
Another said: “The whole thing is very strange.”
A Police Scotland spokesperson said: “Officers are currently dealing with an ongoing enquiry at an address in Troon Avenue in Dundee.
“The incident is contained and there is no danger to the wider community.”