09/11/2013 01:16 EDT | Updated 11/10/2013 05:12 EST

3 women attacked in Vancouver

Vancouver Police are warning the public after three women were attacked from behind on the Cambie Street corridor, the third in a spate of warnings about sexually motivated attacks in the city this summer.

Police said the latest set of attacks began on Sept. 2, at around 3:30 a.m., when a 24-year-old woman was grabbed from behind near Cambie Street and West 18th Avenue.

Three days later, at around 1:00 a.m. on Sept. 5, a 23-year-old woman was similarly grabbed from behind near Cambie Street and West 29th Avenue.

Then on Sunday, also around 1:00 a.m., a 19-year-old woman was knocked to the ground near Cambie Street and West 55th Avenue.

In all three cases, the women screamed and defended themselves, causing the attacker to flee.

It is not known whether the incidents are linked.

In each case the suspect is described as white and of average height and build.

Anyone who has information about these attacks is asked to call the Vancouver Police Sex Crimes Unit at (604) 717-0604 or to remain anonymous, contact Crime Stoppers at 1 (800) 222-8477.