PORT ST. LUCIE, Fla. (CBS12) — An attorney says a go-kart at a Florida adventure park lacked responsiveness, leading to a crash that led to the death of a 6-year-old girl.

The spokesperson from the law firm Morgan & Morgan released a statement on Friday saying Emma Riddle, 6, was riding with her mother in a two-person electric go-kart on December 6, when the vehicle began braking and accelerating erratically and failed to respond to pedal inputs. Moments later, it allegedly surged forward at high speed without her mother pressing the accelerator, crashing into the track wall. Emma later died during emergency surgery at a trauma hospital.

Emma was transported to a local hospital and then to a trauma hospital, where, according to attorneys for the family, she passed away during emergency surgery.

According to the news release, the go-karts allegedly operate like an amusement park ride in that they remain inactive until an employee remotely activates them. Riders allegedly cannot start the kart, move it from the starting line, or initiate any motion on their own until they are activated.

See Related: 911 call released in fatal go-kart accident in Port St. Lucie

A statement from Morgan & Morgan founder John Morgan and attorney Thomas Hasty follows:

We have been hired by Emma Riddle’s family to find out how this unimaginable tragedy happened and what could have been done to prevent it. There has been a lot of confusion and misinformation in the media about the events that occurred on December 6th. Based on our initial investigation, we believe that there were mechanical failures in several go-karts that were on the track at the time of Emma’s crash. Emma was a beautiful little girl with a bright future and so much love left to give. We ask for privacy as her family grieves this tremendous loss.

According to the incident report released on Thursday, Emma was allegedly not wearing a seatbelt at the time of the crash.

CBS12 checked Urban Air’s go-kart safety tips and found that it says visitors should check the equipment and “make sure that the go-kart you are using is in good condition and that all safety features, such as brakes and seat belts, are working properly.” At this time, the Occupational Safety and Health Administration (OSHA) is investigating the incident.

In an obituary sent by Emma’s family, she was described as “full of life, love and light” and touched every soul she met. Emma’s memorial is scheduled for Saturday, December 13, at 10 a.m. at Calvary Chapel in Port St. Lucie.

Find more ways to stay up to date with your latest local news. Sign up for our newsletter to get the day’s top headlines delivered right to your inbox. Subscribe to our YouTube channel for the biggest stories and can’t miss video.