The man was left with "serious injuries" after the attack.
Gardaí investigating the discovery of a man with serious injuries in the Westfield Park area of Limerick on Friday evening have arrested a woman aged 18 on suspicion of assault causing harm.
The woman was arrested on Saturday is currently being detained in Henry Street Garda Station under Section four of the Criminal Justice Act, 1984.
Investigations into the incident are ongoing.
At approximately 10.00pm on Friday, Gardaí received reports of man walking on the Ennis Road with what appeared to be an injury.
The man aged in his 30s was treated at the scene before being taken to University Hospital Limerick to be treated for serious injuries.
Mayorstone Gardaí are appealing to anyone who may have witnessed this incident to come forward.
Gardaí are particularly appealing to anyone who was in the Westfield Park and Ennis Road areas between the hours of 8.00pm and 10.00pm, who may have camera footage to make it available.
Anyone with any information in relation to this incident is asked to contact Mayorstone Garda Station on 061 456 980, the Garda Confidential Line on 1800 666 111, or any Garda station.
