At least 15 people were wounded, with two of them being ‘critically’ injured, after a ‘pedal pub’ flipped over at a Midtown Atlanta intersection after going too fast.

The pedal pubs or “mobile bar” are foot-powered, open-air trolley buses that ride guests around the city as they enjoy a drink in the process.

According to CBS 46, the accident occurred at around 6.30 p.m. near the junction of West Peachtree and 14th Streets.

Officials have said that they think the shuttle was trying to turn when it got toppled over.

According to Atlanta Fire & Rescue, two individuals were wounded, three others had what were referred to as serious injuries, and ten people suffered minor injuries in the incident.

Officials are unsure of the exact number of individuals that were on board at the time of the incident in the pedal pub.

In order to transport ten of the wounded to nearby hospitals, firefighters had to utilize an ambulance bus, which is typically designated for “mass-casualty events.”

“The Atlanta Fire Rescue Department has a mobile ambulance we call it MAV-1..we utilized that to transport 10 and Grady facilitated the transportation of the other 5 patients,” stated Jason McLain, Battalion Chief.

While authorities treated individuals who had been hurt before transferring them to four separate Atlanta hospitals, the junction had to be closed to traffic.

There were no other automobiles engaged. The cause of the collision is still under investigation.