An investigation is under way into an alleged break-in at the Houses of Parliament.
The Metropolitan Police received reports of a forced entry to an office in the Palace of Westminster just before 7pm yesterday.
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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.