This video is believed to show a Spanish vessel - the RV Ramon Margalef - in British waters off the coast of Gibraltar.
It was uploaded to YouTube yesterday and purportedly includes extracts of the radio conversation between the ship's skipper and Gibraltar authorities.
ITV News cannot independently confirm the veracity of this footage.
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The 41-year-old father of six died last Thursday - a week before he and the band had been due to begin touring in North America.