Police are trying to obtain all the security footage they can following a vicious and seemingly random attack that saw an assailant sever an elderly woman’s nose in downtown Toronto on the weekend.

The attack occurred shortly after a 76-year-old woman got off an eastbound TTC streetcar at Yonge and Dundas streets, before 2 p.m. ET Saturday.

The woman had been intending to transfer to the subway at Dundas Station and entered an elevator in Yonge-Dundas Square, where the attack occurred.

Det. Ian MacDonald said there is no camera in the elevator, which has left police trying to piece together the sequence of events from the footage they have obtained so far.

"We're looking at locating our victim — first of all entering that area, the timeline, and then of course, anyone who may have travelled in afterward," he told CBC News in an interview on Monday.

MacDonald said it is not known where the suspect fled after the attack. He said a passerby found the victim in the elevator and called 911.

"Is it a random attack? It sounds like it is, from what we have initially," MacDonald said.

The woman later underwent surgery, which MacDonald said was successful.

"Following her surgery…she did come to the station and provide a statement, so she’s a strong woman and she’s at home convalescing with her family," MacDonald said.

So far, police have only the suspect description that was offered by the victim — that she was attacked by a 40- to 60-year-old man who stands 5-6 to 5-8 in height.

MacDonald said police were out canvassing the area on Monday, in part to see if additional video or evidence is available.

With a report from the CBC's Ivy Cuervo