Clifford Cox died at Staines fire station last night, Surrey Fire and Rescue Service said. His next of kin and family have been informed.
Chief fire officer Russell Pearson said Mr Cox was part of the station's Green Watch, and had served as a firefighter in Surrey for nearly 25 years.
More top news
Backbench Labour MPs are having one last push at trying to persuade Jeremy Corbyn to resign.
The actress seized the day and had the words "carpe diem" tattooed on her wrist as an 81st birthday gift from her daughter.
The deadline to become the next Conservative Party leader closed at midday - but who are the contenders?