TUC general secretary Frances O'Grady said:
It is regrettable that the Government is still not listening to its own advice or the concerns of firefighters, and is set on imposing these ill-thought out pension changes.
Firefighters do incredibly dangerous and demanding jobs. The public - which has nothing but the utmost respect for our emergency services - will be at a loss to understand why ministers think that at 60 firefighters will still have the necessary strength and stamina to rescue people from burning buildings.
More top news
There will be sunny spells for many but heavy showers will spread across the UK in the afternoon.