Rio's Olympic velodrome catches fire

Firefighters battled for hours to contain the flames, which were concentrated on the fabric roof structure that resembles a spider's web.

While no injuries were reported, the interior of the stadium has suffered extensive damage from smoke and water.

Authorities have launched an investigation into the cause, with some officials suggesting maintenance issues or electrical faults.

The recurring fires have raised serious questions about the long-term viability and safety of the Olympic complex.