Police are searching for a black BMW that fled from Toronto’s Entertainment District early Tuesday after shots were fired near the G20 security zone.

At least three shots were fired from a vehicle near John St. and King St. W around 3:15 a.m. investigators say, despite an increased police presence in the area.

While the shots were fired close to the yellow G20 security zone, where more than 5,000 police officers are set to patrol downtown Toronto, police say they have no reason to believe this incident is related to the upcoming summit.

Investigators say three shell casings from a small caliber gun were found in the area but could not confirm reports that police vehicles pursued the vehicle to the city’s west end where it disappeared, or that more than a dozen off-duty RCMP officers witnessed the shooting.

Nobody was injured and the investigation is ongoing.