A woman died in hospital following an alleged assault in downtown Toronto on Sunday afternoon, police say.

Police say they responded to a call near Harbord Street and Brunswick Avenue around 2:40 p.m. When they arrived, they found a woman suffering from “very serious injuries,” Const. David Hopkinson said.

The woman was rushed to a hospital, where she later died, Hopkinson said.

Police are treating the death as suspicious and therefore are not releasing any information about the victim or further details of the incident. They do have one man in custody, Hopkinson said.

“Every single death that we come across is treated as suspicious until we know what the mechanism of death was. And we have to determine if the mechanism of death was some kind of criminal act or if it was death by misadventure or death by accident or it was self-inflicted,” Hopkinson said.