A Woori Yallock man has been arrested and released following an incident in Croydon this morning at Swinburne University.
Maroondah Crime Investigation Unit is investigating reports a man allegedly pointed a fiream at a security staff member on the Norton Road Campus.
Police attended the scene around 10.30am, with specialist police along with uniformed officers quickly responding by blocking off the area and arresting the man shortly after.
Officers seized what they believe to be a toy gun.
The 22-year-old man has been released pending further enquiries and police are not searching for anyone else in relation to the incident.