Blue Hill Lane is closed between Silver Royd Hill and Fawcett Lane in Wortley, Leeds, after a fire at a former school.
Fawcett Lane between Kellett Road / Lower Wortley Road and Blue Hill Lane is also shut.
The roads are likely to be closed throughout Friday due to fire investigation work.
West Yorkshire Fire Service is fighting a blaze at a flat in Leeds where they say there may be people inside the property. One person managed to escape on their own.
Six crew wearing breathing apparatus are using three hose reels on the flat at Potternewton Gardens, Chapel Allerton, Leeds.
Fire crews from Moortown and Leeds were called out at 5am.
Ten fire engines and more than 50 firefighters have been tackling a fire at Tata Steel on Aldwarke Lane, Rotherham, overnight.
It involves several thousand litres of oil. Officers say their teams quickly contained the blaze to one building. All employees have been safely evacuated and there are no reports of anyone being injured.
Crews are using a high volume pump to access water from an on site reservoir. It broke out shortly after 1.00am on Thursday morning.
Fire engines from Rotherham, Parkway, Central, Elm Lane, Edlington, Dearne, Birley Moor, Stocksbridge and Tankersley stations are involved.
Firefighters are expected to remain at the scene for several hours. An investigation into its cause will begin once it has been fully extinguished.
Two girls are among eight youths who have been arrested on suspicion of arson in connection with the Bramley fire.
Ten pumps were involved in tackling the blaze on Waterloo Lane in Bramley on Monday night.
It has emerged that the building was being used as a warehouse to store furniture.
The eight youths in police custody are all from the Armley and Bramley area.
They include two boys aged 14, three boys aged 15, one boy aged 16 and two girls aged 14 and 13.
"The building is very frail and we expect within the next seven days it will be taken down to protect the safety of the surroundings.
"We expect this may cause some disruption for the next several days and while this disruption is regrettable it is absolutely necessary to ensure public safety.
"We are working hard with partners to minimise the impact of this work and again, I want to thank residents for their co-operation during this time."
A decision on the demolition of a derelict building in Leeds hit by a fire last night has been delayed until tomorrow morning.
Around ten pumps were used to extinguish the blaze at the disused warehouse on Waterloo Lane in Bramley on Monday night.
Demolition experts were brought in to take a look at the situation earlier this afternoon and have delayed their decision until tomorrow. It is believed they need more time to assess the potential impact of the demolition and the need to turn off utilities.
Earlier, firefighters downscaled the operation and began damping down from afar due to the structure of the building being unsafe.
Firefighters tackling a blaze at a disused building in Leeds last night have downscaled the incident to two pumps and one aerial appliance.
Officers say the blaze on Waterloo Lane in Bramley is now being controlled from a safe distance due to the structure being unsafe.
They also want to reduce the impact of the operation on the local community.
The building is expected to be demolished later today.
Three youths have been arrested in connection with a fire at a derelict building in Leeds last night.
Around ten pumps were involved in tackling the blaze on Waterloo Lane in Bramley.
Fire crews are damping down after a huge fire at a derelict building in Leeds last night.
At its height ten crews from around West Yorkshire were at the scene of the blaze in Waterloo Lane in Bramley.
People living nearby were told to keep their windows and doors closed as thick smoke spread for several miles.
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