Locals around the capital detected deafening explosions late Thursday night.
The blasts came from unused Canada Day fireworks.
Leftover fireworks from July 1 detonated by Lemieux Island.
Police and councillors confirmed the incident.
A follow‑up blast occurred at Bluesfest’s kick‑off night.
Unexploded shells detonated there too.
No one was injured and no damage to property was reported.