An 18-year-old woman was dragged from a house and kicked and beaten with what is believed to have been a metal pole by three men in north Belfast.
It happened in the Manor Street area last night (Tuesday 25 January) just after 8pm.
The woman was taken to hospital where she is currently receiving treatment for a broken ankle.
Three men, aged 19, 23 and 24 were arrested a short time later on suspicion of a number of offences including grievous bodily harm with intent.
Detective Sergeant Ash said this was a vicious beating and there is absolutely no justification for this type of savage attack.
“We are working to establish a motive and I would appeal to anyone who may have witnessed the attack or who may have dash-cam footage, to contact detectives on 101 quoting reference 1374 of 25/01/22,” he said.
A report can also be submitted online using the non-emergency reporting form via http://www.psni.police.uk/