More than 100 firefighters at Forest Gate Police Station are working to extinguish the fire.
A fire at a police station in east London has been extinguished, the London Fire Brigade has announced.
Around 175 firefighters and 30 fire trucks were called to the scene after the blaze broke out at around 16:00 GMT on Wednesday.
Firefighters later said the building’s roof was “completely destroyed” but no injuries were reported.
Police said the incident was not initially treated as suspicious.
It added that police operations in the area can continue as normal.
According to police, the fire appears to have started on the third floor.
Photos from the scene showed heavy smoke billowing from the roof of the building.
Firefighters from Stratford, Leytonstone, Plaistow and other nearby fire stations were sent to assist local crews.
Four long turntable ladders were deployed to help fight the fire from the air, and a drone was used to give firefighters a better view of the fire.
Firefighters said the fire had been prevented from spreading to adjacent buildings.
Residents in the area have been told to keep their windows and doors closed.
An investigation has been launched into the cause of the fire.
“The fire is now under control and the cause of the fire is not being treated as suspicious at this stage,” Superintendent Dan Card said in a video posted on social media.
“I would like to reassure Newham residents that the police response in the area will not be affected and they can continue their mission of keeping the people of Newham and London safe.”
Residents in the area had previously been told to keep their doors and windows closed due to heavy smoke.
Many roads were also closed and people were asked to avoid the area.
London Mayor Sadiq Khan said he was in close contact with the fire chief.
image source, @figurechaser
By Wednesday evening, there was no sign of the fire being contained.