Firefighters rushed to a blaze spanning three acres of undergrowth at North Warren Nature Reserve in Aldeburgh.

Crews were called shortly after 11.30am this morning to reports of a “fire in the open” at the RSPB nature reserve on Leiston Road.

Three crews were called to the scene – two from Leiston and one from Aldeburgh – where three acres of undergrowth were found alight.

Firefighters used hose jets and beaters to tackle the blaze.

A stop was called on the incident at roughly 1.20pm.

A spokeswoman for Suffolk Fire and Rescue Service said an investigation will be launched into the cause of the fire.