Members of the Fire Brigades Union from all forces across our region will walk out from 6.30pm to 11pm tonight.
They will stage a second walk-out for two hours from 6am next Monday - the day before Bonfire Night.
There have been warnings not to hold bonfires tonight, but to wait until tomorrow.
The Fire Brigades Union has accused the Government of not listening to its own evidence which shows proposed pension changes are "unworkable and unaffordable".
The Government said the strikes, due to take place from 6.30pm to 11pm today, were damaging the reputation of the fire service.
The general secretary of the FBU, Matt Wrack, said: "It is ludicrous that after two years of negotiations the Government has still not sorted out this mess.
"Firefighters are keen for these issues to be resolved through discussion but the Government won't even listen to its own evidence which highlight that the schemes are unworkable and unaffordable."
Mr Wrack called on the Government to help deliver a pension scheme which takes account of the "hazardous nature of the job" and is affordable and workable for the taxpayer.
Strike action by the Fire Brigades Union is damaging the good reputation firefighters have with the public, the Fire Minister said.
Members of the FBU are due to walk out from 6.30pm to 11pm today and again for two hours from 6am next Monday in a row with the Government over pensions.
Fire Minister Brandon Lewis said: "This strike action by the FBU is completely unnecessary and does nothing but damage the good reputation firefighters have with the public.
"The public will be baffled by the FBU's course of action when they hear that the deal being offered to firefighters gives them one of the most generous pension schemes in all the public sector."
Mr Lewis called on firefighters to reconsider their decision to strike and work towards a resolution.
A woman has been taken to hospital after a fire at a home in Dinnington, Rotherham. Fire crews were called to the house on Manor Road just after 5am.
Investigations are now underway to find out what caused the blaze.
A 2-year-old girl has died in a house fire in Conisbrough. South Yorkshire Fire Service were called out at 7.50pm this evening to the property on Don Street. Four other children - it's thought one a baby - were involved. Emergency crews are still at the scene.
Twenty firefighters tackled a blaze at a row of derelict buidlings in Bank Street, Mexborough this afternoon,
The blaze brought out just after 2pm but was quickly brought under control.
Hundreds of the region's firefighters staged a four hour walk out this afternoon in a bitter row with the Government over plans to increase their retirement age and make them pay more for their pensions.
Volunteers, senior officers and non-union members answered almost forty calls-outs across the Calendar region,as full-time crews manned the picket lines.
Hundreds of people were evacuated from a theatre in Retford last night when a fire broke out during a performance. A curtain caught light backstage at the Majestic Theatre. The five-hundred strong audience had to leave the building. Two teenagers were taken to hospital as a precaution.
A team of North Yorkshire firefighters are preparing to set off on an world record endurance run. The fire house run, from the 21st September, will see the team jog for between 25 to 35 miles a day, for seven days.
The aim of the event is to run to all the fire houses in the five boroughs of New York City to honour the 343 firefighters, police officers and first responders who lost their lives during 9/11.
They will start their run at the Stephen Siller Foundation's headquarters on Staten Island and will run to the training centre, the maritime fire boats and all the fire houses in Brooklyn, Queens, Manhattan, Bronx and Harlem.
West Yorkshire Fire Service are launching a campaign today to encourage landlords to make their properties safer.
This is how the "Blue Watch" scheme works.
Landlords will be given a self-declaration checklist which recommends how safety products can be installed, maintained and tested. They can then book a visit by a Fire and Rescue Service representative to be "Blue Watch" validated.
Self-declarations cost £25 and the validation costs £65 - both last for 12 months.