
DS Hank Idsinga told reporters on Thursday that the remains had been found with the help of K-9 units and had been sent to forensic authorities.
"We haven't identified what the remains are or who they belonged to," Idsinga said.
McArthur, 66, is accused of killing eight men.
Police have found the remains of seven of the men inside of planters at the property.
The victims have been identified as Selim Esen, Skandaraj Navaratnam, Andrew Kinsman, Dean Lisowick, Soroush Mahmudi, Abdulbasir Faizi and Kirushna Kumar Kanagaratnam.
An eighth man, Majeed Kayhan, is still missing.
McArthur is believed to have targeted men he met on gay dating apps for older and large men.
Police have searched more than 100 sites throughout the city, but all of the remains discovered to date were found at the same home in Toronto's Leaside neighborhood.
Idsinga said identifying the newly discovered remains could take months depending on their condition and the testing required.
Police will continue excavating the ravine for at least another week.
McArthur's case is scheduled to return to court on 23 July.



Comment: See also:
- Canadian serial killer: Landscaper, Bruce McArthur, charged with five counts of murder
For a look inside the mentality of serial killers, see Robert K. Ressler's Whoever Fights Monsters.