Massive flames licked up the sides of the block as 200 firefighters battled the blaze for hours along with 40 fire engines. Flumes of black and grey smoke were billowing high into the air over London hours after the blaze was sparked.
London Fire Brigade said the fire had engulfed all floors from the second to the top of the Grenfell Tower, where several hundred people lived on the Lancaster West Estate in west London.
"We have taken 30 patients to five hospitals," London Ambulance Service said.
Reuters could not confirm those reports. A witness told Reuters that she feared not all the residents had escaped the fire. Some were evacuated in their pyjamas.
Residents related how they woke up to the smell of burning and rushed to escape through smoke-filled corridors.
More than 20 ambulance crews were at the scene. London Mayor Sadiq Khan said a "major incident" had been declared. Police closed the A40, a major road leading out of west London, while some parts London's underground train network were closed as a precaution.
(Additional reporting by Subrat Patnaik; Editing by Michael Perry, Robert Birsel)
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
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