A mammoth clean-up operation has begun after millions of people across the UK celebrated the start of 2014 with fireworks, music and late-night drinking.
The festivities created an estimated 85 tonnes of waste, including up to 15,000 champagne bottles, in central London.
Westminster Council deployed 52 vehicles and 119 members of staff through the night to ensure the streets were cleared for the capital's New Year's Day parade at midday.
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The assault took place after a woman got on the train from Oxford Circus station with three children aged between two and five.
The sex offender was reportedly transferred from HMP Wakefield in West Yorkshire to HMP Belmarsh, south-east London.
Officials say the lizard, about 30cm long, is believed to be a Bengal variety, but it is not known where the reptile's journey started.