Four fire engines attended a fire at a recycling centre on Beeley Wood Road, Sheffield involving four buses on fire after a call was received at 2.11am.
Crews worked to extinguish the fire until around 4.30am where firefighting was discontinued and a firebreak was created until crews revisited at 8.50am.
Dampening down took place before the fire was confirmed extinguished and crews fully came away at 9.15am.
The fire service lists the incident location as Beeley Wood Lane, Sheffield, and records the cause as accidental. Crews from Elm Lane, Rivelin, Tankersley and Central stations attended.
