In pictures: The Great Smog of London

On Friday 5 December 1952 a dense smoke-filled fog shrouded London and it hung over the city for the next four days.

London came to a standstill. Over 4,000 people died, motor vehicles were abandoned, trains were disrupted and airports were forced to close.

A campaign warned people about the dangers of smog

Much of London came to a standstill

Public transport ground to halt

Smog continued into the 1960s

People protected themselves with handkerchiefs