A haze of smog is causing a headache for organisers of the Singapore Grand Prix just days before the Formula 1 paddock descends on to the Marina Bay street circuit.

The city is currently engulfed in a thick smog caused by farmers in neighbouring Indonesia burning forests to clear land for agriculture and it is feared air pollution levels are becoming a major concern.

In a statement released by race organisers it explains the smog could only become an issue if it effects visibility, public health or operations during the Grand Prix weekend.

Related Articles

On Sunday, the smog was rated as mid-to-low 'unhealthy' on the Pollutant Standard Index and a number of sporting events in Singapore were called off over the weekend because of health risks.

"The possibility of haze is just one of the many potential issues that are covered in the contingency plan," the statement read.

There is currently no indication that any of the free practice sessions, qualifying or the night race will be effected by the smog and a constant review will be in place throughout the race weekend.

Two years ago the third free practice session was delayed by 20 minutes due to poor visibility caused by pollution.