A police scene guard was in place outside the On the Spot store in Ashmore St, Halfway Bush, on Saturday morning, following a burglary earlier in the morning.
A spokeswoman confirmed police were called to the store at 4.10am after a member of the public spotted an offender smashing a window to gain entry.
The caller told police the offender had "a bat of some sort", she said.
She could not say whether anyone else was at the property at the time of the break-in, or if anything had been taken, but inquiries were continuing.
Officers had also visited a nearby On the Spot convenience store at the corner of Taieri and Helensburgh Rds in Wakari on Saturday morning, after a window was damaged overnight.
It did not appear that anyone had gained entry to the store, but police would review CCTV footage, she said.
Earlier this month, the Four Square Foodlands Supermarket in Kaikorai Valley Rd became the fourth convenience store in a week to be targeted, when two bungling would-be burglars smashed their way in, tried to break open a cigarette cabinet, then fled empty-handed when an alarm went off.
The incident followed similar burglaries at the BP service station in Mornington, the Port Chalmers Four Square and the Brockville Supermarket.
