The Metropolitan Police says it's looking into whether the substance sprayed into the face of an officer may have been ammonia. He was attacked when he stopped a moped rider in Battersea yesterday afternoon.
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Temperatures feeling fresher today - as meteorically speaking we have entered Autumn.
Taking a break from updates about the airport, the Twitter feed of Heathrow Airport has been speculating about possible football transfers.
Six of the top ten worst areas across the country for fly-tipping are in London.