Firefighters tackled two fires in Gainsborough during Saturday’s 12 hour strike.
Contingency crews were in place to deal with emergencies between 2pm Saturday and 2am Sunday.
Members of the Fire Brigades Union walked out across Lincolnshire and the rest of the country in a long-running row over pensions.
Lincolnshire Fire and Rescue Service reported that its contingency crews dealt with 11 incidents during Saturday’s strike, six of which were fires.
At 7.40pm crews from Gainsborough and Saxilby were called to a fire on Trent Port at Marton.
The blaze had engulfed a derelict building, a caravan and some herdgerow.
They wore breathing apparatus to tackle the fire and used two hose reel jets, one main water jet and a portable pump to put it out.
At 11pm Gainsborough crews were called out again, this time to a small household rubbish fire at Fillingham Close in the town. They put it out using a hose reel.
A third period of industrial action will take place today, Sunday, from 10am until 3pm.
Dave Ramscar, chief fire officer at Lincolnshire Fire and Rescue, said: “Lincolnshire Fire and Rescue has plans in place to ensure that we continue to provide an emergency response within the county.”
“We accept that any planned industrial action will impact on our ability to deliver business as usual, but we are confident that the implementation of our plans will enable us to continue to answer 999 calls and to respond to incidents as quickly as possible.”
“We continue to remind people to take care when going about their daily business, and that there is further safety advice available on our website and on Twitter @lincsfirerescue.”
The service said it had continuity plans in place for all eventualities and would be prepared to maintain an emergency response to 999 calls during strike periods.
However, people are urged to be especially aware of fire safety risks during these periods and should only call 999 in a genuine emergency.