As heavy rains tore through northern Minnesota Wednesday, buildings were destroyed, neighborhoods were evacuated, and a local zoo saw almost a dozen animals die in floods while others escaped.

Almost two thirds of the Lake Superior Zoo in Duluth, Minn. was covered in water, and two seals and a polar bear left their broken enclosures after up to nine inches of rain fell on the city. No serious human injuries have been reported, but at least eleven animals died when the zoo’s barnyard flooded, Reuters reports.