A robbery on Sunday in Mill Woods may be linked to two others last year, say Edmonton police.

"The nature of these incidents was very similar and the complainants were assaulted in the same area," said Det. Brad Jones in a press release. "We are taking this matter very seriously and want to remind the public to be aware of their surroundings."

Just before 10 p.m. on Sunday, a woman was walking home after leaving a convenience store on Mill Woods Road South where she withdrew money from an ATM.

The woman was walking alone near 75th Street when a man approaching from behind assaulted her with a weapon and robbed her.

On Thursday, police described the suspect as a Caucasian male, 6’0" tall, and 160-170 lbs with a slender build and dark hair.

He was wearing a dark hoodie, dark blue jeans and bright white skateboard-type sneakers.

The robbery is similar to two others in November 2011, said Jones.

Around 9 p.m. on Friday, Nov. 11, a 41-year-old woman was walking near Knottwood Road when she was approached by a man who stabbed her before fleeing.

The woman was taken to hospital with serious injuries.

On Tuesday, Nov. 22, around 10 p.m., a 24-year-old woman was confronted near Mill Woods Road and 80 Street by a man who approached her from behind with a weapon.

She managed to get away unharmed.

Although police believe all three incidents could be linked, it's not certain if all three involve the same suspect.