Facebook founder Mark Zuckerberg said the social networking site's News Feed "is one of the most important things we have built", ahead of an expected revamp to the service.
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A band of rain will cross England and Wales through the rest of today.
As Princess Charlotte celebrates her first birthday on Monday, the young royal has received letters and gifts from 64 countries worldwide.
A 36-year-old man has been shot dead during a police operation in Kent.