Arsonists doused a Doncaster shop in petrol before sparking a blaze that caused widespread damage.
Fire crews from Dearne, Rotherham and Edlington were called out to the store in Bank Street, Mexborough, at just after midnight on Wednesday morning.
In a statement, South Yorkshire Fire and Rescue said the blaze “caused significant damage” and was “started deliberately – with petrol used as an accelerant.”
The brigade added: “Upon arrival two breathing apparatus wearers entered the premises and used a hose reel jet to extinguish the fire – which had been started deliberately in a number of different places.
“Nobody was injured in the incident and it had been dealt with by 1.40am.”