RESIDUAL fat left on oven trays led to a fire at Axholme Academy in Crowle.
The oven fire was extinguished by staff at the academy - formerly known as North Axholme School - prior to the arrival of crews from both the Crowle and Epworth stations.
A pan was removed outdoors and a fire blanket was also used during the incident.
Firefighters used breathing apparatus and a fan to ventilate the building.
A smoke detector had been activated during the fire which was reported at 11.40am on Wednesday, January 18.
No-one was hurt during the incident.