Firefighters have issued a reminder about the importance of smoke alarms after they alerted residents to a fire at a student accommodation block.
Six fire engines and 35 firefighters and officers were called to the fire in St John Street, Clerkenwell.
A small part of an electrical room in the basement was damaged by the fire. There were no reports of any injuries and 10 people left the property before the arrival of the Brigade.
The fire was discovered after a member of staff heard an alarm sounding and saw smoke in the basement. They then called 999.
A London Fire Brigade spokesperson said: "This fire shows how important it is to have working smoke alarms.
"Fortunately no one was injured in this fire and people were able to safely evacuate the building.
"As a minimum you should have smoke alarms on every floor - in the hallways and the rooms you use the most, plus a heat alarm in the kitchen.
"They should be linked together and tested regularly."
The Brigade was called at 1254 and the fire was under control at 1352. Fire crews from Shoreditch, Lambeth, Islington, Soho and Whitechapel fire stations attended the scene.
The cause of the fire is believed to have been a fault within a mains supply cable.