Nottinghamshire Police is appealing for information following a fire outside some flats in Clifton.
All residents were evacuated from the premises safely in Glapton Lane at around 2.35am today (Tuesday 23 April) however the property suffered significant smoke and fire damage.
The fire is believed to have started among some discarded furniture that had been left outside the flats.
Following an investigation by Nottinghamshire Fire and Rescue Service it is believed to have been started deliberately.
Police are investigating and urge anyone who witnessed anything suspicious to call 101, quoting incident number 47 of 23 April 2019, or Crimestoppers anonymously on 0800 555 111.