Two students have been taken to hospital, with one in a critical condition, after a stabbing incident at the Australian National University in Canberra.
The two 20 year old women received stab wounds while a 34-year-old man was treated at the scene with minor injuries after an alleged assault.
ACT Police confirmed a 24-year-old man, who is not believed to be a student, had been taken into custody following the stabbing on the ANU campus at 2.45pm on Monday.
They say he not been charged at this time and no other people are being sought by police.
The university posted on social media site X, formerly Twitter, that the situation was under control.
Students have been encouraged to stay away from Fellows Oval and Chifley Meadow as they are active scenes of investigation.
Support services are also available to students and staff.
Police are not searching for any other people of interest, although anyone who witnessed the incident and has not yet talked to police is encouraged to contact Crime Stoppers on 1800 333 000.
ANU Vice-Chancellor Brian Schmidt reassured the university community of its safety and thanked the emergency response teams.
"I would like to express my sincere gratitude for the swift and efficient response from ACT Policing, ACT Ambulance Service and our own ANU Security team," he said in a statement issued to staff and students.