A 34-year-old man has been arrested and a 26 year old woman has been taken to the University Hospital of Wales following an incident in the Stafford Road area of Grangetown at around 2.15pm today.
It is believed those involved are known to each other.
The woman’s injuries are not believed to be life-threatening and her family have been contacted.
Enquiries are continuing in the area.
Witnesses or anyone with information is asked to contact South Wales Police on 101 or Crimestoppers anonymously on 0800 555 111 and quote reference 783
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