CALDWELL, Idaho (Idaho Press) — Part of the second floor of the Indian Creek Steakhouse caved in Thursday evening as guests were eating dinner and celebrating a Christmas party.

No one was injured or trapped under debris, Caldwell Fire Battalion Chief Tim Scott told the Idaho Press.

Scott estimates the collapse created roughly a 25-by-25-foot hole between the two floors, over the bar area. The call about the collapse came in at 7:53 p.m., Scott said. He did not know how many people were in the restaurant at the time, and they had all evacuated into the street by the time fire crews arrived.

Patti Syme, a real estate agent who's married to state Rep. Scott Syme, was at the steakhouse for an office Christmas party during the collapse. The party was on the second floor when it caved in. No one was hurt, however, because the party attendees were lining the restaurant wall for a group photo.

She said the collapse appeared to cause a waterline to break, flooding the bottom floor. Restaurant staff hurried everyone out, she said.

"That's quite the way to end a party," Syme said.

The collapse did pull loose the sprinkler system, causing water leaks, Scott said. Intermountain Gas and Caldwell water department officials were dispatched to the scene and secured the gas lines and turned off the water. Caldwell police and fire crews and Canyon County Paramedics also responded.

Scott said he did not know what caused the collapse.

Indian Creek Steakhouse, which opened in 2011, recently completed a 16,000-square-foot expansion at its location at 711 Main St. in downtown Caldwell. Scott said the expansion area is not what caved in.

"We were fortunate to not have a larger incident than what we did," Scott said.

With the expansion, which opened in mid-November, the restaurant is 26,000 square feet, owner Dillon Wickel previously told the Idaho Press.

Before the expansion opened, the steakhouse served roughly 260 people a night on weekends, Wickel said in October. He expected that number to jump to roughly 450 customers per night after the expansion, though it's unclear how many customers were in the building Thursday evening.

ncG1vNJzZmihlJa1sLrEsKpnm5%2BifK%2Bx1qxmpaeTlrlwvM6rq6KnnmK8p3nSnpqoppRis627zqtknJmmmsButc1mmK1lmaOxqq3NZpqrnZWgerTAxJqioaelqLI%3D