VicPD's emergency response team had to be called to an incident in the 1700 block of Kings Road Sunday.
Police have not released any details but they were seen and heard advising people in the area to stay indoors and asking the public to stay away from the area.
Residents in the area say they saw police go into a house after spending hours outside trying to convince a person of interest to come outside, they also indicated they believed the person was armed and dangerous.
One man says he was asked to leave his home and a woman says she was worried for the international students she cares for.
The block was still behind police tape Sunday afternoon.