Two boys aged 14 and 15 are still being questioned by police investigating the murder of an 85-year-old woman in Greenford.
Paula Castle was mugged in an alleyway beside a primary school on Monday afternoon.
She died in hospital the following day.
More top news
As Tibetan Buddhists begin celebrating Buddha's enlightenment, find out what goes on during the celebration and why it is so important.
A helmet-mounted camera has filmed an extraordinary exchange between a driver and a cyclist.
New research shows households spend an average of $11K per year on mortgage repayments and rent.