This video uploaded to You Tube appears to show slow-moving traffic at the border checkpoint between Gibraltar and Spain as cars are searched by officials last Friday.
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Jessica Urbano Ramirez was two weeks away from her 13th birthday when she died in the June 14 blaze.
No-one was on board the single-decker vehicle, Humberside Police said.
The disgraced film producer has been the subject of an investigation in the US into allegations that he sexually assaulted numerous women.