Police were called to the scene, in front of a house on Thepkrasattri Rd in Moo 7 Tambon Thepkrasattri, at 4am, when residents reported that someone had cut power supply to the house and that a petrol-vending machine there had been broken into.
On arrival, officers led by Lt Sophon Naiyao of the Thalang Police found a blue screwdriver on the round beside the machine. A pair of large bolt cutters were found nearby.
The back of the machine had been forced open and the money box removed, police noted.
Kasem Wareesri, who lives in the house and is the owner of the petrol machine, told police that the machine had been there about a year.
He estimated that about B3,000 in cash had been stolen
Police said they were now trying to track down the robber and were collecting evidence from the scene, including taking fingerprints, in the hope of tracking down the robber.