The investigation is underway into the cause of the fire early Friday morning that gutted the Islamic Center and other businesses on the corner of 3rd and Center streets in Winona.
Fire Chief Curt Bittle was with the state Fire Marshall Friday afternoon trying to determine the exact location and starting point which also heavily damaged the Brosnahan Law Office and the Blooming Grounds Coffee House.
The two floors of apartments above Blooming Grounds were also damaged.
Employees of the Social Security Administration Office in the Choate Building and Salon Nouveau across the street were open Friday but both reported having the smell of smoke inside.
Many surrounding businesses were closed Friday due to the fire and the closing of nearby streets for the cleanup effort.
The fire was reported around 2:00 a.m.