Anti-capitalism protesters from the Occupy movement have begun a new protest in the City of London as part of a global day of action.
Other protests are underway in cities including Moscow, New York, Athens and Madrid.
Several hundred people have gathered outside St Paul's Cathedral for a rally, before moving on to demonstrate outside the offices of some of the largest firms in the financial heart of London.
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Members of the RMT union on the Northern Line are planning to walk out on Monday after a driver was sacked for failing a breath test.
The A&E department at Northwick Park Hospital in north London has been under pressure following the closure of two other A&E units.
Martin Allen, 15, disappeared on his way home from school in London in 1979 and was never seen again.