Four fire engines and around 25 firefighters were called to a warehouse fire on River Road in Barking.
Firefighters used fire escape hoods to rescue three people from a building in Greenwich.
Four fire engines attended a house fire in South Harrow.
Four fire engines and around 25 firefighters were called to a fire on the top floor of block of flats on Loddiges Road in Hackney.
Four fire engines and around 25 firefighters have been called to a fire in a car park on Kymberley Road in Harrow.
Six fire engines responded to a fire on Queensway, Bayswater.
Four fire engines and around 25 firefighters tackled a fire at a semi-detached house on Burnside Avenue in Chingford.
Fifteen fire engines and around 100 firefighters dealt with a flat fire on Leman Street in Aldgate.
Four fire engines and around 25 firefighters tackled a fire on Wood End Gardens in Northolt.
Firefighters have issued a reminder of their ducting safety advice following a fire at a restaurant with dwellings above in Walthamstow.