Masive Blaze Engulfs 27-storey Tower in West London

Forty fire engines and 200 firefighters and officers have been called to the scene. PIC/AFP.

The cause of the fire is not yet known. It's also not clear whether people are trapped. PIC/AP.

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The fire has burned more than three hours and involved nearly every floor of the 27-story building. PIC/AP.

The London Ambulance Service said the 15 were taken to hospitals. Police said earlier they were continuing to evacuate people from the apartment building Wednesday morning. PIC/AP.

In this image made from video provided by Celeste Thomas @MAMAPIE, a building is on fire in London, Wednesday, June 14, 2017. Firefighters are battling a massive fire in an apartment high-rise in London. One side of the building appeared to be in flames. (Celeste Thomas @MAMAPIE via AP)