Emergency crews are battling a massive crop fire in fields south of Stevenage.

The Comet: The fire near Knebworth. Picture: SmartapixThe fire near Knebworth. Picture: Smartapix (Image: Archant)

The fire is off Stevenage Road, near Knebworth, with a fire service spokesman telling the Comet there is an “area of stubble approximately 100m by 100m, well alight”.

Five fire engines are on the scene – two from Stevenage and one each from Welwyn, Welwyn Garden City and Baldock & Letchworth stations – and police officers are also there.

The Comet: The fire near Knebworth. Picture: SmartapixThe fire near Knebworth. Picture: Smartapix (Image: Archant)

A witness told the Comet at 1.55pm that it was “just smouldering now – a large area is scorched, there are several appliances scattered at strategic points dampening the surrounding area”.

The Comet is awaiting further updates from the emergency services.

The Comet: The blaze near Knebworth, south of Stevenage. Picture: Gary SandersonThe blaze near Knebworth, south of Stevenage. Picture: Gary Sanderson (Image: Archant)

The Comet: Smoke coming from the fire south of Stevenage. Picture: Phill RobertSmoke coming from the fire south of Stevenage. Picture: Phill Robert (Image: Archant)

The Comet: Smoke coming from the fire south of Stevenage. Picture: Phill RobertSmoke coming from the fire south of Stevenage. Picture: Phill Robert (Image: Archant)