Olympian Tyson Gay's 15-year-old daughter has been shot dead at a Kentucky restaurant.

Trinity Gay, herself a rising track star, was shot in the neck at Cook Out restaurant in Lexington early Sunday morning.

She died at the University of Kentucky Medical Center, the coroner's office for Fayette County said in a statement.

Tyson, who will be flying back to Lexington Sunday, told LEX 18: 'She didn't make it. I'm so confused. She was just here last week for fall break. It's so crazy. I have no idea what happened.'

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Tragedy: Trinity Gay, 15, was shot at a Kentucky restaurant on Sunday morning. She is pictured here with her father, Tyson Gay

Tyson (pictured left and right with his daughter) said: 'She didn't make it. I'm so confused. She was just here last week for fall break. It's so crazy. I have no idea what happened'

Crime scene: Trinity, 15, was shot in the neck in the early hours of Sunday and succumbed to her injuries

Police response: Officers responded to reports of a shooting at Cook Out restaurant in Lexington, Kentucky

Her mother, Shoshana Boyd, told the New York Daily News: 'She was so innocent, she was so innocent.

'She wanted to be the fastest woman in the world, and they took that away from her.'

Officers went to the parking lot of the restaurant near the University of Kentucky campus at about 4am after witnesses reported gunfire was exchanged between two vehicles, Lexington police said in a statement.

The vehicles have been described as a gray Dodge Charger and a dark-colored sports car with tinted windows.

Police spokeswoman Brenna Angel said police don't believe Trinity, who died shortly before 5am, was in either of the cars involved.

Officers located one of the vehicles and stopped two people for questioning, the statement added.

Police were still searching for the second vehicle and are continuing to investigate.

Following in her father's footsteps: Trinity was making a name for herself as a Lafayette High School athlete

Trinity (pictured left and right) was just 15 years old when she was gunned down at a restaurant

Like her father, Trinity ran 100 and 200 meters. Father and daughter are pictured together

Sophomore Trinity had followed in her sprinter father's footsteps and was making a name for herself as a Lafayette High School athlete.

She was a sprinter and finished fourth in the 100 meters and fifth in the 200 meters at the state Class 3A high school track meet in May, records show.

She also ran on a 4x200 relay team that finished fourth. Her father also ran at Lafayette and still holds the state record in the 100 set in 2001.

Julian Tackett, commissioner of the Kentucky High School Athletics Association, wrote on Twitter: 'Shocked to hear of death of Trinity Gay. A life of such potential cut so tragically short. Sympathies to Tyson and entire family.'

Olympic Gold medalist and sprint coach Ato Boldon, from Trinidad and Tobago, tweeted: 'Condolences to Tyson Gay and his family... 15-year-old girl dies after shooting at Lexington restaurant.'

'#Sad news for a member of our @usatf Family this morning,' US Olympic sprinter Lauryn Williams ‏wrote. 'As you head to church pray for @TysonLGay His daughter was killed last night.'

US Olympic sprinter Lauryn Williams asked people to pray for Tyson Gay following the tragic news

Shot-putter Darrell Hill tweeted: 'Praying for your peace @TysonLGay. Everyone please say a short prayer for Tyson's family'

Sophomore Trinity was making a name for herself as a Lafayette High School athlete

Sprinter Tyson Gay has competed in each of the last three Summer Olympics. His daughter was also an athlete

And shot-putter Darrell Hill wrote: 'Praying for your peace @TysonLGay. Everyone please say a short prayer for Tyson's family.'

Meanwhile, the official Twitter account of USA Track & Field, tweeted: Sending our thoughts & prayers to @TysonLGay & his loved ones as they mourn the tragic & senseless loss of his daughter, Trinity.'

Tyson is the fastest sprinter in history not to have an Olympic medal after a career nagged by doping disqualifications.

The 2007 world 100- and 200-meter champion and four-time US 100m champion suffered a hamstring injury at the 2008 Olympic trials and did not medal at Beijing.

At the 2012 London Olympics, Gay was on the US 4x100 relay that finished second to Usain Bolt-led Jamaica but the Americans were stripped of the medal in 2014 based on a positive test by Gay in May of 2013 that he blamed on an unnamed third party.

Gay served his suspension and returned to run again two months ago at the Rio Olympics where the Americans ran third in the 4x100 relay behind Jamaica and Japan, only to be disqualified because of a faulty exchange between teammates Justin Gatlin and Mike Rodgers.