A Florida teen has died after a shooting at a gun range Thursday that authorities are investigating as a suicide.

The teen, who family members have identified as Vincent Colonna, reportedly shot himself at the Gun World of South Florida in Deerfield Beach, Florida, according to news station WTVJ.

Colonna, 14, had visited the gun range center with his dad for shooting practice.

Police said the teen suffered a self-inflicted wound. He was airlifted to Broward Health Medical Center, where he later died.

His grandmother, Ana Rosen, told WTVJ that his dad did not notice any signs that anything was wrong.

“He said he was doing this thing, shooting his weapon as he normally did then he said he looked up and he was on the ground,” Rosen said.

The Broward County Sheriff’s Office said the investigation into Colonna’s death is ongoing.