Police have named the five-year-old girl who died at the Lanlivery Steam Fair, near Lostwithiel, Cornwall on Saturday.
Tayla Saunders, from Honiton, was struck by a slow moving vehicle. She was treated by paramedics at the scene within a minute of the incident occurring as they were present at the show on a display stand within 100 metres of the location.
She was flown by air ambulance to Derriford hospital where she later died.
Police based at Bodmin Serious Collision Investigation Unit are appealing for witnesses to contact them on 101 quoting log number 396 of 08/09/2012.
More top news
Why the couple who set up social networking site Bebo are to restore and re-open Woolsery's pub and manor house.
Details have been published of improved safety on the M5 in Somerset, three years after one of the worst road accidents in living memory
Friends and colleagues have been paying tribute to the St Austell couple who lost their lives at Mawgan Porth near Newquay.