Firefighters from Humberside Fire and Rescue were called to two incidents in the Isle yesterday.
The first was at 9.02pm at George Street in Keadby.
It involved a large uncontrolled bonfire which spread to a shed.
A hose reel was used to deal with the blaze.
At 9.19pm on the same evening officers attended a small grass fire at Dole Road in Crowle, it was extinguished by being stamped out.