A baby boy delivered via C-section after his mother was killed in a Toronto-area drive-by shooting last month has died.

Candice Rochelle Bobb, 35, was five months pregnant when she was fatally shot while in the back seat of a car on May 15 near John Garland Boulevard and Jamestown Crescent in suburban Rexdale, Ont.

She was taken to Etobicoke General Hospital, where she was pronounced dead and the baby was delivered. After the delivery, the baby boy was transported to the trauma centre at Sunnybrook Health Sciences Centre.

At the time, the baby was listed in stable, but serious, condition.

Late last month, Bobb's family announced a glimmer of hope with news that the child, born at just 24 weeks, was gaining weight. But on Sunday, the family issued a statement through police that the boy had died in hospital at approximately 7:10 p.m.

The family has asked for privacy.

Bobb, who lived in neighbouring Mississauga, was returning home from a basketball game when the car she was in was sprayed with bullets. Three other people in the vehicle were unharmed. Police believe the vehicle was targeted, but that Bobb was likely not the intended victim.

No arrests have been made.

At the time of Bobb's shooting, police wouldn't say how many suspects they were looking for, saying only that the shots fired came from a second vehicle.

Police did not provide any updates on the investigation Sunday.

It's not clear whether the infant's death will be treated as a homicide. A spokesman said police would be "consulting" Crown prosecutors, but did not elaborate.

Bobb's death sparked widespread outrage, drawing attention to the city's ongoing battle with gun violence.

"The killing of Candice Bobb has shocked the city," Police Chief Mark Saunders said on the heels of the shooting, calling on Torontonians with information about the crime to come forward and co-operate with police.