TORONTO — Police in Toronto have recovered the remains of at least six people from planters on a property connected to alleged serial killer Bruce McArthur, officials said Thursday.

Detective Sgt. Hank Idsinga said the remains, found on property McArthur used as storage in exchange for doing the landscaping, included some from one of the five men McArthur is already charged with killing, Andrew Kinsman.

McArthur was arrested Jan. 18 and charged with two counts of murder in connection with the disappearances of Kinsman and Selim Esen, two men last seen in the “Gay Village” district of Toronto. Not long after that, he was charged with the murders of three more men and police said they were on a wide search for other possible victims. Police expect to file more charges.

Investigators are still working to determine who the other alleged victims are from the property. They haven’t determined yet if they are the same men or other people.

Authorities have checked at least 30 other places where the landscaper was known to have worked, including some of Toronto’s wealthiest neighborhoods. Police have said they expect to find more remains in the planters they’ve retrieved from around the city.