Police are investigating a report of "some type of struggle between a man and a woman" in North Belfast.
The incident is understood to have happened around 4am on Skegoneill Avenue.
Detectives investigating the incident are appealing for witnesses.
PSNI Detective Sergeant Faulkner said: "We received a report at around 4.30am yesterday morning (13th December) of some type of struggle between a man and a woman that occurred at around 4am.
"We are keen to establish exactly what occurred and we would urge anyone who was in the area, between 4am and 4:30am, and witnessed what happened to get in touch with us.
"We are also keen to hear from anyone who noticed a dark coloured jeep-type vehicle in the area to call our detectives on 101, and quote reference number 371 of 13/12/20.
"You can also submit a report online using our non-emergency reporting form via http://www.psni.police.uk/makeareport/ or call Crimestoppers anonymously on 0800 555 111."
