Eight people, including five children, were injured when a floor collapsed at a terraced house in Bradford.
Firefighters were called to Parkside Road, in the West Bowling area of the city, at 3.25pm on Saturday.
When they arrived they discovered that the ground floor of the house had partially collapsed.
A spokesman for West Yorkshire Fire and Rescue Service said two casualties had been taken to hospital for a precautionary check-up but it is not understood that anybody received life-threatening injuries.
Fire crews from Bradford and Odsal attended with a rescue unit and support from Cleckheaton, plus other specialist vehicles and officers.