A man has is being treated in hospital after being found suffering from serious burns at Penrith last week.
About 1.45pm last Friday, emergency services were called after a 37-year-old man was found in a park on Woodriff Street, with significant burns to the lower part of his body.
He was flown to Royal Prince Alfred Hospital, before being transferred to Concord Hospital, where he remains in a critical condition.
As police from Nepean Police Area Command continue with their inquiries into the incident, they are appealing for anyone who may have been near the park at the time to come forward.
Officers are particularly interested in speaking with anyone who has a dash-cam device fitted to their vehicle who may have driven past around the time of the incident.
Anyone with information about this incident is urged to contact Nepean Detectives via Crime Stoppers on 1800 333 000.