“ Israeli police said at least 23 people were killed and another 250 were injured in Thursday night's collapse of a crowded wedding reception hall. Rescuers called off the search for survivors Saturday afternoon.

Police have questioned 10 people involved in the building's construction and recent renovation, including the four-story structure's contractors and engineers. They were under arrest, but no formal charges had been filed Saturday afternoon.

Authorities said it was possible a crucial support wall may have been removed in the renovation about three months ago.

Among those arrested was the inventor of a lightweight flooring system widely used in Israel in the 1980s but banned by the government in 1996. ”