WINNIPEG, Manitoba (REUTERS) - Human remains believed to be the bodies of four infants were discovered in a storage locker in the Canadian Prairie city of Winnipeg, police said on Tuesday.

The Canadian Broadcasting Corp, citing sources, said the remains were discovered in a U-Haul storage locker.

Winnipeg police declined to comment on the location of the discovery. A message for U-Haul, owned by Amerco, was not immediately returned.

Winnipeg, population 771,000, had the second-highest homicide rate among Canadian cities in 2012, according to Statistics Canada. The city had 33 homicides that year, or four homicides per 100,000 population, second to Thunder Bay, Ontario.