(KMOV) -- Trams at the St. Louis Arch are back up and running after a group of visitors became stuck at the top of the Arch.
Everyone on the was able to get down safely after being stuck on the observation deck for over an hour.
According to an Arch spokesperson, a group of about 40-50 people were in the viewing area at the top of the Arch when a tram broke down. No one was trapped inside the tram. The tram is now running again.
The St. Louis fire department was called to the scene. They assisted one person who was in the group, a pregnant woman.
Arch officials said a leveling device on one of the trams malfunctioned. The leveling device is what keeps the tram upright during it's travels up and down the arch, but the tram never tilted. They just noticed something was wrong with it. This is on the South leg of the arch.
The leveling device was replaced. The arch has re-opened.
The North leg of the arch was undergoing seasonal maintainence, and was not operational going into the day. This is why the group couldn't get down that way.