At least three people were injured by an iceberg wall that has collapsed in the Titanic Museum.

On Monday night, an iceberg wall at the Titanic Museum Attraction in Pigeon Forge, Tennessee collapsed, injuring at least three visitors.

As reported by Unilad, the victims were taken to a hospital. Mary Kellogg Joslyn and John Joslyn, the museum’s owners, said the extent of their injuries is currently

In a statement posted on Facebook, the owners wrote:

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“Tonight, an accident occurred at our Titanic Museum Attraction in Pigeon Forge. Our iceberg wall collapsed and injured 3 guests who were taken to the hospital. At this time, we do not know the extent of their injuries.

Needless to say, we never would have expected an incident like this to occur as the safety of our guests and crew members are always top of mind.”

According to their website, the Titanic Pigeon Forge Attraction is the largest Titanic display in the world. The site’s guests are offered a “door to the past,” as they get to experience what it was like inside the world’s most famous luxury liner

What’s more, visitors can also observe more than 400 artifacts directly from the ship and its passengers. They can also “touch a real iceberg,” walk on the Grand Staircase, and explore the hallways.

Although the iceberg wall area is now “blocked off,” the attraction reopened the day after the incident. In an update post, the owners explained:

“Immediately following the accident, Titanic Museum Attraction was closed, and as of the morning of Tuesday, Aug. 3, we reopened to ticketed passengers. The iceberg wall does not currently exist, and the affected area has been blocked off, for the time being. We anticipate it will take at least four weeks for the iceberg to rebuild.

The safety of our guests and team members is always top of mind.”