15-year-old daughter of American sprinter Tyson Gay has died after a shooting in Kentucky.

The Lexington Police Department announced Trinity Gay was killed in the incident, which took place in a car park at the Cook Out restaurant.

"A juvenile who was struck at the scene was transported to a hospital by private vehicle and then transferred to UK [University of Kentucky] Hospital, where she was pronounced deceased," a statement read.

"The victim has been identified by the Fayette County Coroner's office as 15-year-old Trinity Gay of Lexington."

USA Track and Field also confirmed the news, tweeting: "Sending our thoughts & prayers to Tyson Gay & his loved ones as they mourn the tragic & senseless loss of his daughter, Trinity."

Trinity Gay had been following in her father's footsteps by building a sprinting career of some promise.

Tyson Gay, 34, is the USA's 100m record holder, while Trinity Gay was a 200m regional champion during the most recent athletics season.