House to house enquiries have taken place on the Mount Estate in Milford Haven following a suspicious fire on Friday.
A Dyfed-Powys Police spokesman told the Western Telegraph: “Police and Fire Brigade attended reports of a fire in the stairwell in a property of flats in Ash grove, Mount Estate at approximately 12.30pm on Friday 30th May 2014.
"The small fire was contained in the stairwell. The fire is being treated as suspicious. No-one was injured in the incident.
"House to house enquiries have been conducted."
Anyone who witnessed the incident or may have information that would help the investigation is asked to contact Milford Haven Police on 101 or Crimestoppers anonymously on 0800 555 111.