New Orleans Fire Department

Gov. John Bel Edwards' Facebook page

*** This is a developing story ***

Authorities say one person was killed and three others are still unaccounted for after a partial roof collapse at the under-construction Hard Rock Hotel New Orleans just after 9 a.m. Saturday.

New Orleans Fire Department Superintendent Timothy McConnell said at a press conference that the building is considered "unstable" with the potential for another collapse. "It's a very dangerous situation," said McConnell.

New Orleans voters will be heading to the polls tomorrow to decide what the city drainage system will look like, how firefighters are paid and the direction of the Criminal District Court.