Fire chief says one person rescued overnight

One more person has been rescued and taken to a hospital after a building collapsed in Iowa.

Davenport Fire Chief Michael Carlsten said at a news conference on Monday that it was unclear how many people, if any, were still missing after an apartment building in the eastern Iowa city collapsed.

Rescuers were called to the scene shortly before 5 p.m. Sunday. Fire crews rescued seven people and escorted more than a dozen others from the building in their initial response.

Carlsten said the back of the six-story apartment complex collapsed and had separated from the building, which houses apartments on the upper floors and businesses on the ground level.

Authorities found a gas leak after the collapse, Carlsten said, while water also had leaked throughout the floors of the structure.