Cash and a toolkit were stolen during two burglaries and a theft in Harwell, which police believe may be connected.
A house in The Croft was broken into on Friday evening between 6.20pm and 10.25pm.
The rear patio door was forced open and jewellery was stolen.
Another house in the same street was burgled overnight between Tuesday and Wednesday last week, with cash being stolen.
A vehicle on the driveway was then broken into, and loose change and a toolkit were taken.
Thames Valley Police confirmed they are linking the incidents.
If you have any information call 101 and ask for Detective Constable Leech at Abingdon Police Station.
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