The total number of stray dogs in London has gone up from 13,832 in 2012 to 14,004 in 2013. That works out at 38 dogs being picked up every day by Local Authorities.
The results go against the national average which has shown a 6% decrease in the total number of strays collected in the UK.
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The twins cubs, which were born in June, have been named Bert and Ernie after characters from Sesame Street.
The two victims died from their injuries in hospital after the explosion in Hertfordshire.
Investigations are continuing into the cause of the crash in chigwell which killed both people on board.