Senior salvage master at Titan Salvage Nick Sloane, employed in the removal of the cruise liner Costa Concordia has said the "biggest" challenge has caused some of the delays. The ship sank in January last year claiming the lives of 32 people.
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Paramedics attended a scene in Willesden, north-west London, on Monday afternoon where they found the teenager with stab wounds.
The popular game relies on Google Maps, a problem in South Korea as those functions are limited by the government.
A Met Office warning covering much of England and south-east Wales is expected to remain in place until 11am.