A nearly frozen baby abandoned for dead by doctors in Toronto after her 20-year-old mother gave birth on the sidewalk on Sunday, has been revived, according to the Toronto Sun.

The trouble began when a pregnant mother in Canada was feeling ill and attempted to walk to Toronto's Humber River Hospital.

"She wasn't feeling well and her and her mother were walking to the hospital," Toronto police Const. Wendy Drummond told the Toronto Star.

It turned out the 20-year-old woman was going into labor. Yet she never made it to the hospital, instead giving birth to a baby girl in the bitter cold on a Toronto sidewalk.

According to Drummond, the woman called 911 and police and paramedics rushed mother and infant to the hospital. After repeated attempts to revive the nearly frozen baby, she was pronounced dead by hospital staff, and any further attempts to revive the child were abandoned.

"Doctors worked on her but the baby was pronounced dead soon after," Drummond said.

After the baby was pronounced dead, two police officers were assigned to guard the body before it was brought to the morgue.

Two hours after the child was abandoned for dead by health care professionals, the officers noticed something moving under the sheet. The frozen baby was alive.

"Today two officers experienced something most likely never to happen again in their careers," Drummond tweeted Sunday on the Toronto Police Twitter page. "Truly astonished/pleased baby is doing well."

According to Jamie Hutchison, research director for critical care medicine at the Hospital for Sick Children who also studies hypothermia therapies, the cold could have stopped the nearly frozen baby's heartbeat, leading to the false death diagnosis.

"Hypothermia can mimic death," Hutchison told the Daily Mail. "Temperature is an important factor when you're determining death."

Twitter user Rowena Li feels the doctor's should have used more caution before declaring the revived frozen baby dead.

"Kudos to the cops, but the hospital staff needs to be more careful," Li tweeted.