Shortly after a spectacular New Year fireworks display illuminated the city's skyline from the iconic old mutual tower, the building caught fire.

The incident left onlookers both thrilled and fearful as they were immersed in a sensory experience of music and lights moments after ushering in the New Year.

Images and videos circulated on social media showed thick black smoke billowing from the building with visible fire that was quickly put out. There were no reports of casualties.

The exact cause of the fire remains uncertain, although speculations on social media suggest that it may have been triggered by the pyrotechnics used during the stunning display.

Firefighters swiftly responded to the scene to distinguish the flames, bringing the situation under control.

While the investigation into the cause of the fire continues, authorities and experts will examine the circumstances surrounding the incident to ensure the safety of future events and celebrations in the city.