A female believed to be in her 20s has died after a single-vehicle crash in East Gwillimbury Sunday night.

It happened near Yonge Street and Old Yonge Street at around 11 p.m. Sunday.

According to police, one female was pronounced dead at the scene.

It is unclear if anyone else was inside the vehicle at the time of the crash.

Roads in the area are expected to be closed for another couple of hours as police investigate.