Multiple explosions and a large fire erupted on the roof of a ten-storey building at a construction site in Hamburg's HafenCity, Germany, causing significant alarm on June 9, 2023 afternoon. The blaze sent a colossal cloud of black smoke billowing into the sky, visible from a distance as captured by @Ffleig. The police attributed the popping noises to nearby gas cylinders detonating during the fire.

Thankfully, there were no reported injuries, as confirmed by the Hamburg fire service. However, emergency responders did transport a crane operator to an ambulance for examination by a medical professional. As a precautionary measure, residents of HafenCity and the surrounding neighborhoods were instructed to keep their windows and doors closed due to the smoke.