Metropolitan Police Commissioner Sir Bernard Hogan-Howe has said he "apologises for the shock and offence" the undercover policing tactics of using dead children's names, and that this had been passed on to one family who discovered that their child's identity had been used.
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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.