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The incident happened on Gamblins Rd, St Martins, at about 11.30am, near the New World supermarket.
A police spokeswoman said the woman's injuries were not life-threatening.
"Police are following lines of inquiry to locate the person responsible," she said.
Three houses on Wilson's Rd and a footpath were taped off on Wednesday after the incident.
Residents told Star News they saw two men and a women involved in an 'altercation'.