All week we've been exploring the issue of poverty in London - how many are living in squalid, overcrowded conditions, some even in slums.
Tonight we're reporting on how older Londoners are trying to survive on their pensions.
As part of our special series on poverty in the capital, Ria Chatterjee has met one woman who is so poor she's living in an old air raid shelter.
If you've been watching this week you'll know we have shown a series of reports on poverty in London.
London may be one of the world's richest cities, but it is also one in which thousands of people live in poverty.