The incidents happened in Edenderry on Saturday.
A number of thefts from unlocked cars took place in Offaly over the weekend.
The incidents happened in the Edenderry area in the early hours of Saturday.
Gardaí are urging people to lock their vehicles, park in well lit areas where possible, and remove valuables from their vehicles.
Anyone who sees any suspicious activity is asked to contact Edenderry Garda Station or the Garda Confidential Line.
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