A young woman who was discovered on a street in the Port Lands early Tuesday morning died of a single gunshot wound, police said.

Leanne Freeman, 23, of Winnipeg was found with severe injuries, lying in a pool of blood in the middle of Unwin Avenue, west of Leslie Street just after 1 a.m.

Emergency crews rushed the unconscious woman to hospital where she later succumbed to her injuries and was pronounced dead.

A post-mortem examination conducted Tuesday afternoon determined Freeman died of a gunshot wound to the body.

Investigators with Toronto Police Services say they are treating the woman's death as a homicide.

"There are a couple things we need to answer: who she is, cause of death and what motivated the killing," Const. Tony Vella told CTV Toronto on Tuesday.

Vella said that police are now trying to retrace Freeman's steps.

"We know that she's been in Toronto for the last several months now," Vella said. "We're still trying to determine exactly what her business was here in Toronto."

Officers spent Tuesday combing Toronto's sprawling industrial Port Lands area, looking for clues that might offer answers in the bizarre death.

Police also expanded the crime scene Tuesday night, bringing in police dogs to search both sides of Unwin Avenue up to Leslie Street.

Police said they still aren't sure if someone dumped the woman's body there or if she was in the area on her own. Police said they did receive a 911 call.

Forensic investigators continue to comb the area for evidence.

With a report from CTV Toronto's John Musselman