The back porch of the East Hernando Branch Library in Brooksville caught fire early Saturday, triggering sprinklers and causing water and smoke damage throughout the building.
The blaze started about 2 a.m. and was contained to a screened porch, Hernando public information officer Brenda Frazier said.
A damage estimate was not available Saturday afternoon. The fire is under investigation by the Hernando County Sheriff's Office and State Fire Marshal.
The library at 6457 Windmere Road is closed until further notice, Frazier said. Staffers will make arrangements Monday for an alternate location on the east side of the county for patrons to return items. Books may also be returned to the main library at 238 Howell Ave.
Patrons can renew books online at hcpl.lib.fl.us or by calling (352) 754-4043.