A 30-year-old Toronto woman has been arrested and charged with murder in the separate deaths of three people in Toronto, Niagara Falls and Hamilton, according to Toronto police.

A Toronto woman is accused of killing three people over three days – allegedly targeting two of them at random – in three different southern Ontario cities this week, police said Friday, as investigators work to determine if she could be linked to any other cases across the province.

Sabrina Kauldhar, a Toronto woman, has been arrested after a deadly three-day killing spree across Ontario, leaving three victims dead. Authorities are investigating the murders, labeling Kauldhar a potential serial killer due to the violent and random nature of the attacks.

Niagara Regional Police officers arrested 30-year-old Sabrina Kauldhar of Toronto on Thursday at a Burlington Hotel. Kauldhar has been charged with first-degree murder in the Hamilton homicide and second-degree murder in the Toronto and Niagara investigations.

A Toronto woman is accused of killing people in Niagara Falls, Hamilton and Toronto across the first three days of October. Two of the killings, police allege, were random.

An alleged serial killer has been arrested after what police say was a three-day killing spree. Sabrina Kauldhar, 30, of Toronto, has been charged with second-degree murder in a death in Toronto and a death in Niagara Falls. She is also charged with first-degree murder in relation to a death in Hamilton.