National Express said: "An empty National Express vehicle caught fire at Gatwick Airport earlier this afternoon. We are working closely with the emergency services and will continue to assist them.
"We will also carry out our own thorough investigation to establish the cause of this highly unusual incident."
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A GP in Surrey has launched a petition calling for a £90m fine handed to two drugs companies, to be reinvested in the NHS and epilepsy care.
Friday evening's weather update for the east
Friday evening's weather update for the west