(CBS) — A porch collapsed Monday evening in Evanston, and at least three people were injured.

City Manager Wally Bobkiewicz tweeted about the incident, which occurred in the 1900 block of Darrow after 8 p.m. About 15 people were on a porch when it collapsed, he said.

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At least three people were transported to the hospital in stable condition, Evanston Fire Department Division Chief Tom Janetske said at the scene. He said the third-floor porch deck collapsed onto a second-floor porch. The accident was likely related to people gathering at a Memorial Day celebration, the official said.

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“Everyone was having a good time, and all of a sudden the floor gave way,” Janetske said.

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