<page_title> List of the deadliest firefighter disasters in the United States </page_title> <section_title> List </section_title> <table> <cell> September 11 attacks <col_header> Event </col_header> </cell> <cell> 343 <col_header> Fatalities </col_header> </cell> </table>
9/11 was the deadliest firefighter disaster in the United States, with 343 killed.