A man is dead and three other people have serious injuries after a violent incident unfolded over a number of properties in a Canberra street.
Multiple crime scenes have been set up in Braine Street in suburban Page where police found the man's body, two injured men and an injured woman.
Officers went to the street about 9am, after reports of a disturbance.
They found a seriously injured man and provided initial treatment. Soon after they were "rushed" by another man, forcing them to subdue him with a taser.
He was arrested. Police then found the body of a man and a woman with "significant injuries".
The two men and the woman were all taken to Canberra Hospital. One of the men and the woman are undergoing surgery.
Police have not said what sparked the violence or if a weapon was involved. The task of processing the crime scenes is expected take some time.
"This incident stretched over a number of properties," Detective Superintendent Scott Moller said.
Asked about the pair in surgery, he said: "They are in a very serious condition."
Supt Moller said there was "no ongoing risk to the public" and it was not yet clear exactly what happened.
"We're still working through all the issues in relation to the incident. We're still piecing together the circumstances," he said.
"I believe we'll probably be here throughout the night and into tomorrow before we are really able to process all of the evidence at the scene."
Do you have a story tip? Email: firstname.lastname@example.org.