There have been 266 fires on nuclear submarines in the past 25 years, the Ministry of Defence has revealed.
The incidents included 74 on ballistic missile submarines. Three happened while the vessels were in naval bases; one of these was on a ballistic missile submarine.
SNP defence spokesman Angus Robertson said the “apparent vulnerability” to fire raised “grave questions”.
The MoD said no fire had ever had an impact on nuclear safety.
Continue reading at Nuclear submarine fire figures revealed