The police forensic crash unit has been called to investigate an incident that left a man lying on a road in Brisbane's north with head injuries in an apparent electric skateboard accident.

Emergency services were called to Nepean Avenue in Arana Hills at 7.15pm Wednesday after reports of the man on the road.

The 40-year-old was treated at the scene before being transported to the Royal Brisbane and Women's Hospital in a critical condition. Credit:File

Police say initial information suggests the man fell and hit his head after losing control of an electric skateboard.

The 40-year-old was treated at the scene before being transported to the Royal Brisbane and Women's Hospital in a critical condition.

Anyone with information is asked to contact Policelink on 13 14 44 or Crime Stoppers on 1800 333 000.