One person was treated in hospital following a three-vehicle crash on the Falls Road in west Belfast on Monday (26 August).
The crash happened just before 6:30pm.
The injuries are not believed to be life threatening at this time.
A 24-year-old woman was arrested on suspicion of a number of driving related offences, including driving when unfit through drink and drugs.
She was subsequently released on police bail pending further enquiries.
Sergeant McKay said police are investigating the circumstances surrounding the collision and are appealing to anyone who witnessed the collision, or who captured it on their dash cam, to contact police on 101 quoting reference 1535 of 26/08/19.
Or, if someone would prefer to provide information without giving their details they can contact the independent charity Crimestoppers and speak to them anonymously on 0800 555 111 which is 100% anonymous and gives people the power to speak up and stop crime.