In the first hour of a strike by firefighters, London Fire Brigade says it received 12 calls.
Strike incident update: Between 12 noon and 1pm we received 12 calls & crews attended 1 rta but no action was needed. http://t.co/aQPiRqXM1Y
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The idea is to encourage people to use the open spaces like parks and waterways more.
18 year-old Kane Johnson went missing on April the 10th and his body was discovered near Lambeth Bridge eleven days later.
Temperatures will reach 34C in London on Wednesday with temperatures getting up to 28C in southern England from today.