Police were guarding two flats on an Arbroath street where an alleged double stabbing took place.
Two men were taken to Ninewells Hospital with stab wounds after a “serious assault” in Glenogil Drive at around 7.50pm on Thursday.
Their conditions were unknown.
A 48-year-old man was traced nearby and arrested in connection with the incident.
Incident at Arbroath’s Glenogil Drive ‘ like a scene from CSI’
On Friday morning, three police vehicles were parked at two flats on Glenogil Drive.
Officers were standing outside the properties, which are yards from Arbroath Academy.
The road was closed after the incident but reopened on Friday morning.
Neighbours described the scene outside their homes on Thursday night as being straight out of the American crime drama CSI.
One said: “I got back home around 8pm and Glenogil Drive was blocked off with police cars at either end and you couldn’t get in.
“I saw around a dozen police vehicles in total and two ambulances – including the ambulance fast response vehicle.
“It was mental – it was like a scene from CSI.
“There were police everywhere – in a flat beside mine and at one along the road a bit.
“There were lots of blue lights. It seemed to be all over after about half an hour and I was allowed to drive to my home.”
Police remain outside two flats after alleged double stabbing
The neighbour added: “Police remained outside the two flats all night and are still here today.
“There have been uniformed and plain-clothed officers as well as forensics in white suits.”
Another neighbour said: “This street is right beside the academy and I dread to think what might have happened if schoolchildren had been around at the time.
“I have seen lots of police coming and going since last night.”
A spokesperson for Police Scotland said: “Around 7.50pm on Thursday, March 14, police were called to a report of two men being seriously assaulted in Glenogil Drive, Arbroath.
“Officers attended and two men were taken to Ninewells Hospital for treatment.
“A 48-year-old man was traced nearby and arrested in connection with the incident.
“Inquiries are continuing.”