Police were called to a £1 million property in north London to break up a party after 600 people turned up. According to the Evening Standard, the event was advertised on Facebook by a friend of 17-year-old Christopher Seale. He didn't realise the information could be seen by anyone.
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The capital's theatres also generate more searches than those in any other city, according to research by Google.
Union officials are expected to meet next week to plan further stoppages if talks fail to resolve the dispute.
Natalie Sharp and Christine Bicknell appeared in court over an alleged incident at a Lidl superstore in Wallington, south London.