"The chief suspects are illegal salvagers, diving down to the wrecks and systematically plundering them not just for their cargo but for their fixtures, fittings and finally their entire rusting hulks.
"It's unusual for shipwrecks of that size to just vanish," said Parsons who works for maritime services company..."
http://mobile.nzherald.co.nz/world/news/article.php?c_id=2&objectid=11751988
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