Neighbours and paramedics tried for half an hour to save a teenager shot in north London late last night, but eventually he was pronounced dead at the scene.
Forensic teams have spent the day at the site of the shooting in Lower Edmonton. Ronke Phillips reports.
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The high of 35C was recorded on a Bakerloo line train between Piccadilly Circus and Oxford Circus at 2pm.
Weather forecasters say temperatures could reach 35C, beating the previous record of 34.6C in the scorching summer of 1976.
After years of political manoeuvring over the future expansion of Heathrow Airport, there has been an important development this lunchtime.