Florida store shooting leaves 4 dead, including the shooter: report

Multiple people were shot and killed at a Dollar General store in Florida on Saturday, according to the Jacksonville mayor. 

Fox News reports that four people are dead, including the shooter. 

Mayor Donna Deegan told  WJXT that there are "a number of fatalities” inside the store.

“This is unacceptable,” Deegan said, according to the Associated Press. “One shooting is too much but these mass shootings are really hard to take.”

This is a developing story.