Firefighters in Melton are staging a 24-hour strike today.
Crews are off the road between 9am this morning and 9am tomorrow (Friday).
Industrial action has been taken following a dispute over the increase in the normal pension age from 55 to 60.
Members of the Fire Brigades Union (FBU) claim the move could put jobs at risk with older members facing the threat of dismissal if they fail fitness tests.
There is also dissention among firefighters that the government has failed to publish alternative plans that the union claims it has had since March.
The 24-hour action follows a series of smaller strikes.
Residents and business have been urged by the Leicestershire Fire and Rescue Service to visit their strike safety pages during the strike.
The fire service has pledged to continue to provide fire and response cover throughout the action, although it will be on a much reduced scale.
Area manager for community response, Rick Taylor, said: “The advice we have issued today will inform residents and businesses of the simple steps they can take to increase their safety whilst at home or at work.
“In addition, we would urge drivers to take extra care while they are out on the roads during this time.”
Mr Taylor added: “Whilst any strike action is under way, our contingency plans will ensure that you will continue to receive an emergency response.
“Resources will be much reduced and it may take a little longer to respond to emergencies, but we will attend every incident we need to.”
Fire safety pages can be accessed by the public at http://www.leicestershire-fire.gov.uk/media-communications/campaigns-and-events
A second day of action is planned by firefighters on Saturday June 21, from 10am to 5pm.