Hansen Storage, a Wauwatosa storage facility, suffered a partial roof collapse.
The business is located at 2880 N. 112th St., just south of Burleigh Street.
Brent Lee, the assistant chief of the Wauwatosa Fire Department, said the cause of the collapse is still unknown.
No one was injured.
Snow can often be the cause of roof collapses, but Lee said he wasn't sure if snow was the main reason behind this collapse.
