12/19/2014 18:21 EST | Updated 02/18/2015 05:59 EST

Police seek 4 men in Etobicoke sex assault

Police are searching for four men accused of sexually assaulting a 27-year-old woman and are also trying to determine which west-end building the assault took place in.

On Monday, police said the woman was lured by a man to a building in the Kipling Avenue and Dundas Street West area in Etobicoke. There, she was held against her will and sexually assaulted by three other men before having her life threatened by one, police say.

The woman managed to give police a detailed account of what happened, allowing police to produce and release sketches of the suspects.

But are seeking to identify the exact building. Police want help finding the address of a building that is:

- A shorter, multi-level structure that's likely under five floors.

- Has a reddish, dark or brown-coloured exterior

- Has underground parking

- Has a concrete or brick overhand at the front entrance decorated with Christmas lights

- Has one elevator, long hallways and a set of double-doors are the front entrance

The suspects, none of whom have been formally identified by police at this time, are described as being between 30- and 40-years-olds.

The first suspect is a tall, white man who wore his black hair parted and spoke English with a foreign accent.

The second suspect is around 5’3, with a round face and no hair.

The third suspect is only described as being white with light-coloured hair.

The fourth man, called "Noel," has light-brown skin, is around 5'3 and doesn't speak English well. The victim said the man claimed to be from Venezuela.

Anyone with information is asked to contact police at 416-808-7474 or contact Crime Stoppers anonymously.