Detectives want to track down two women after three people were taken to hospital following a fire at a flat in Aberdeen.
Residents had to be evacuated from the block in Printfield Terrace after the alarm was raised at around 4.30am on Sunday.
No one was seriously injured by the blaze, however two men and a woman had to be taken to hospital as a precaution.
Enquiries are ongoing to establish the full circumstances and officers are keen to speak to two women believed to have been in the area at the time who may be able to assist the investigation.
One of the women was wearing a white jacket and red dress. The second woman was wearing a blue jacket.
Detective sergeant Emma Low said: “Deliberately setting fires is inherently dangerous and this may well have had more serious consequences.
“Our enquiries are ongoing and I would urge anyone who may have seen any suspicious activity or who may have private CCTV or dashcam footage from the area to get in touch.”
If you can help, call 101 or Crimestoppers anonymously on 0800 555 111.