Two teenagers, aged 14 and 15 have been charged with the murder of 85-year-old Paula Castle. She died of a head injury after her handbag was stolen in Greenford on Monday.
The two have also been charged with robbery, and will appear in court in Uxbridge later today.
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Police said they are "extremely concerned" for the welfare of a "vulnerable" mother and her two children who have gone missing in Bexley.
It is hoped the 7,400-mile journey will become a cost-efficient and time-saving way of transporting trade between China and the UK.
The Supreme Court is set to decide on whether disabled travellers are legally entitled to have priority use of wheelchair spaces on buses.