The comedian Russell Brand has joined Anonymous protesters at a rally in central London.
He tweeted "whatever party they claim to represent in the day, at night they show their true colours and all go to the same party."
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Most of the UK will have a mixture of sunny spells and scattered showers before becoming drier in the afternoon.
Scottish people celebrate the birthday of national writer Robert Burns with events including haggis throwing and the Big Burns Supper.
There will be a rare chance to see an asteroid pass so close to the Earth you will be able to see it with binoculars on Monday night.