This is the moment a biker sets his private parts alight and sparks a huge blaze after filling up at a petrol station and spilling fuel on his trousers in the process.

The incident in which the man with his trousers on fire is seen fleeing off-camera was filmed at a petrol station in the city of Borazjan in the southern Iranian province of Bushehr.

The biker, name not reported, was pouring fuel into his motorcycle when he spilled some on the bike and himself.

The man was still sitting on the motorbike during the refuelling process, and in the CCTV footage, he is seen turning on the headlight after starting the engine just after the spill.

In a flash, a huge fireball ignites and the man’s trousers are set alight. He is seen dismounting the bike in flames as his motorbike burns intensely.

The man disappears out of shot while trying to pat out the flames that have engulfed his groin with his hands.

Meanwhile, at least one worker tries to tackle the burning motorbike with a fire extinguisher.

There have been no further updates on the biker’s condition and if the local authorities are investigating the incident.

Local media has reminded bikers to be careful when filling up their motorcycles due to the risk of sparking a fire, especially in hot weather.

Borazjan City usually experiences very hot summers and the temperatures in July can reach around 48 degrees Celsius (118 degrees Fahrenheit).